“The IAEA International Seismic Safety Centre and IAEA ...

“The IAEA International Seismic Safety

Centre and IAEA Safety Standards for

Site Evaluation and Design of NPPs”

2009 Bulgaria Nuclear Energy Conference - BULATOM

27-29 May 2009

Antonio Godoy and Pierre Sollogoub, IAEA

2

IAEA – SEISMIC SAFETY

THE INTERNATIONAL SEISMIC SAFETY CENTRE (ISSC)

Enhancing the Seismic Safety of Nuclear Installations

The ISSC has been established within the IAEA Department of Nuclear Safety and Security as a global focal point on seismic safety for nuclear installations worldwide

September 2008

3

LAUNCHING THE ISSC – 52 GC

• IAEA 52nd Regular Session of the General Conference 2008 -Director General, M. ElBaradei, Statement – “IAEA AT A CROSSROADS”:

“ . . . The Agency is proud to celebrate the 50th Anniversary of the IAEA Safety Standards programme. We continue to upgrade our safety standards, including addressing threats to nuclear installations from extreme natural hazards such as volcanoes and tsunamis. In response to increasing Member States’ concerns, we established an International Seismic Safety Centre, which will pool expert knowledge and assist nuclear operators and regulators in the aftermath of major seismic events. . .”

(Nuclear Safety and Security Section).

4

The 52nd IAEA GENERAL CONFERENCE

“we established an International Seismic

Safety Centre”

Presentation boothon natural hazards

Press conference with Prof. Shibata and Japanese regulatory authority

5

ISSC – BACKGROUND

• Seismic safety of nuclear installations is a subject that has received substantial attention at the IAEA within the frame of its statutory functions, and of the

corresponding programmatic projects, for establishing safety standards and assisting member states for its application.

8/25/2005 12 International Atomic Energy Agency

Safety Standards Series hierarchySafety Standards Series hierarchy

Safety GuidesSafety Guides

RequirementsRequirements

Safety FundamentalsSafety Fundamentals

6

ISSC – BACKGROUND

• From the inception of the nuclear safety standards in the 1970s, both areas i.e.

• (a) the seismic hazard evaluation at a site and

• (b) the seismic design, seismic qualificationand seismic re-evaluation and upgrading of structures, systems and components of

nuclear power plants

have been treated in a scientific and detailed manner based on the experience of and the consensus between MSs in its treatment.

7

ISSC – BACKGROUND

• The IAEA safety guides have been revised three

times during last 35 years and a new revision process started recently.

A new safety guide on the seismic safety evaluation of existing nuclear installations is in

the publication stage (DS383) and the current safety guide on seismic hazard assessment (NS-G-3.3) is presently under revision process (as DS422).

8

ISSC – BACKGROUND

• These IAEA safety standards have matured with time and with invaluable feedback from a very large number of advisory and review services .

Now they are documents that are referred to by a majority of our MSs.

• These seismic safety review services started in

the beginning of the 1980s and more than 100 were implemented to date for new nuclear installations and for safety upgrading of existing ones.

» At the site selection phase (siting),

» At the site evaluation phase

» During operation.

9

ISSC – BACKGROUND

• Recently seismic matters are paid more attention owing to the occurrence of strong earthquakes that have affected nuclear power plants beyond their original design levels,

impacting on the operation, economics and public credibility of these installations.

Earthquake Effects at the Plant: Fire at in-house (non-safety) electrical transformer

The fire was extinguished after 2 hours. The fire was extinguished after 2 hours.

Root cause: soil subsidence of the base of Root cause: soil subsidence of the base of

the secondary connection bus bar with the secondary connection bus bar with

respect to the transformer foundation. respect to the transformer foundation.

11

Earthquake Effects at the Plant:Rupture of Fire Protection Water Pipe

Annex

CavityWater

flow

BF5

Duct

BF4

BF3

BF2

BF1

Ground Level

S/P

RPV

Sump

R/B

The flooding affected radioactive waste

processing equipment on BF5 of the Annex.

Ruptured FP water pipe.

Root cause: soil failure

Amount of leaked water：：：：

approx. 2000m3

12

Earthquake Effects at the Plant:Non-safety related Class B & C and Other SSCs

Near Unit 5

Near Switch Yard

Service Roads Ground Subsidence

Light Oil Tank Yard

13

What we’ve learned from recent strong earthquakes?

• Consequences:� Impacts on safety and non-safety related systems

� Damages to structures, equipment and infrastructure (roads, fire fighting system)

� Seismically induced internal fire and flood

� Public concern – Response to the emergency

• Vibratory ground motions beyond the original design levels: >>SL-2 earthquake level.

• Realistic assessment of seismic margins. Earthquake experience data.

• Increased attention on findings and lessons, particularly, for new NPP projects and for “newcomers”.

1414

OTHER EXTERNAL EVENTS

• AIRCRAFT CRASH – 9/11

• INDIAN OCEAN TSUNAMI – December 2004

• HURRICANES

• TORNADOES

• VOLCANIC ERUPTIONS

15

ISSC – BACKGROUND

• Owing to the complexity of these multidisciplinary problems they should be resolved using the experience and contribution

of the whole related international scientific community as well as sharing the lessons learned in order to avoid or mitigate the consequences of such extreme natural events.

16

ISSC – OBJECTIVES

The objectives of the ISSC are:

1. Enhance seismic safety of nuclear installations –new and existing- in Member States;

2. Help in the development, revision and

improvement of related safety standards;

3. Pool expert knowledge and assist nuclear operators and regulators in the aftermath of major seismic events;

4. Promote knowledge sharing among the international nuclear community.

17

ISSC – AREAS OF ACTIVITIES

The main areas of the ISSC follow the functions established in the IAEA Statute:

1.1. Development of safety standards,Development of safety standards, as part of the

statutory functions and regular budget activities;;

2. Assistance to MSs on the application of the safety standards throughthrough safety review safety review

servicesservices;

3.3. Development ofDevelopment of specific technical activitiesspecific technical activities

through dedicated topical R&D projects;through dedicated topical R&D projects;

4.4. Education, Training, Knowledge SharingEducation, Training, Knowledge Sharing. .

18

IAEA NS - NSNI – ESS/ISSC

Department

of

Safeguards

Department

of

Nuclear

Science and

Applications

Department

of

Management

Department

of

Nuclear

Safety and

Security

(NS)

Department

of

Nuclear

Energy

Department

of

Technical

Cooperation

NSNI/ISSC

1919

NS – Nuclear Safety Installation Division

Near future - Current proposal – 2ndH 2009:

ISSC

RAS-Regulatory

SAS-Safety Assessment

OSS-Operational

Safety

RRSS-ResearchReactors

Division of Nuclear Installation Safety

(NSNI)

INTERNATIONAL

SEISMIC SAFETY

CENTRE (ISSC):• Site Selection and

Site Evaluation

• Seismic safety

• Other External/Internal Hazards

• Human Induced Events including malevolent origin

• Environmental Impact Assessment

• Chapters 2 and 3 of SAR

2020

STRUCTURE OF ISSC

Development of

Safety Standards

INTERNATIONAL SEISMIC

SAFETY CENTRE

(ISSC)

Application of Safety

Standards

SCIENTIFIC

COMMITTEE(ScC)

IAEA Safety Standards ProgrammeTOPICAL TECHNICAL PROJECTS

1. Seismic hazard assessment

2. International benchmarks

3. Post-earthquake actions

4. Earthquake and Plant Database – Knowledge Sharing

5. Experience feedback

6. Tsunami and Flood Hazards

7. Volcanic Hazards

Site and Seismic Safety

Review Services

Education & Training

IAEA

MEMBER STATES

(MSs)

Technical Meetings, Experts

Meetings, Consultants.

Workshops

Services to Member States

Supports Advice

21

STRUCTURE OF ISSC

The ISSC is part as a Section of the organizational structure of the Nuclear Safety Installation Division, and is constituted by:

1. IAEA Staff Members

2. An extended roster of international specialists in all disciplines of seismic safety and earthquake engineering

3. The Scientific Committee by highly recognized international scientists in all related fields.

• Included in the Budget and Programme Planning for 2010-2011.

22

ISSC – SCIENTIFIC COMMITTEE (ScC)

• The ScC is constituted within the framework of the ISSC. • The main function of the ScC is to provide scientific

guidance relative to:• (a) state-of-the-art developments in the required fields

of knowledge and expertise, and • (b) the activities, work plan, results and documents

prepared within ISSC scope. • The ScC will be constituted by worldwide recognized

scientists and experts, mainly from the academic and engineering fields, representing all related knowledge areas of the ISSC scope and with consideration to the experience from different geographic regions.

• The membership of the ScC may be changed considering the need to adapt it to the work plan activities.

2323

ISSC - SCIENTIFIC COMMITTEE

EUROPE ASIA NORTH AMERICA

SOUTH AMERICA

GEOLOGY X X X -.-

SEISMOLOGY -.- X -.- X

SEISMIC HAZARD X -.- X -.-

GEOTECHNICAL ENGINEERING

X -.- -.- -.-

STRUCTURAL ENGINEERING

X X -.- X

EQUIPMENT X X X -.-

SEISMIC RISK -.- X X -.-

Technical areasRegions

TSUNAMI HAZARD

VOLCANIC HAZARD

24

ISSC – AREAS OF ACTIVITIES

ACT. II

Safety review

services

ACT. I

Safety Standards

ACT. IVEducation and

Training services

ACT. III

Topical projects

and R&D

ACT. V

Knowledge sharing database of earthquakes, plants and methodology

information

International Seismic Safety Centre conducts projects

with four main ‘vertical’ pillars and maintains one

knowledge sharing database as an ‘horizontal’ cross-

cutting activity.

25

MAIN AREAS OF ACTIVITIES

• Activity I : Development of Safety Standards

• Activity II : Implementation of safety review services,

to assist MSs on the application of the

safety standards

(Engineering Review Services)

• Activity III : Development of specific methodologies

and guidelines through dedicated topical

projects and R&D

• Activity IV : Education and Training

• Activity V : Knowledge management and database

2626

IAEA Safety Standards on Site Evaluation

SITE EVALUATION

REQUIREMENTS

GUIDES

SAFETY GUIDES

8/25/2005 12 International Atomic Energy Agency

Safety Standards Series hierarchySafety Standards Series hierarchy

Safety GuidesSafety Guides

RequirementsRequirements

Safety FundamentalsSafety Fundamentals

2727

NS-R-3 Requirements for Site Evaluation for Nuclear Installations

3.1 Safety Guide: EXTERNAL HUMAN INDUCED EVENTS in Site Evaluation for NPPs

3.2 Safety Guide: DISPERSION OF RADIOACTIVE MATERIAL IN AIR AND WATER and Consideration of Population Distribution in Site Evaluation for NPPs

3.5 Safety Guide: FLOOD HAZARDS for NPPs on Coastal and River Site

3.3 Safety Guide: Evaluation of SEISMIC HAZARDS for Nuclear Installations

3.4 Safety Guide: METEOROLOGICAL EVENTS in Site Evaluation for NPPs

XX-DS405-VOLCANIC HAZARDS in Site Evaluation for Nuclear Installations

3.6 Safety Guide: GEOTECHNICAL ASPECTS of Site Evaluation and Foundation for NPPs

SITE EVALUATION OF NUCLEAR INSTALLATIONS:

Merged with Radiation Assessment for

Environmental Inspect.

DPP to be prepared.

DPP422 approved by CSS.

Revision of current version.

For nuclear installations.

New.

DPP417 approved by CSS.

Merged of current 3.4 and 3.5.

For nuclear installations.

New.

Draft prepared.

DPP to be prepared to

formalize NUSSC approval.

Actions

Published in 2002.

To be revised after 2010 (if needed).

Published in 2004.

To be revised after 2011 (if needed).

Note: current structure future structure

28

ACTIVITY I: SAFETY STANDARDS

1. DS 422 Safety Guide – Evaluation of Seismic Hazards of Nuclear Installations• Comments from MSs, 20 March 2009

• Consultants Meeting, April 2009

• NUSSC meeting, June 2009

• CSS meeting, Nov. 2009

• Publication, Feb. 2010

2. DS 417 – Meteorological and Hydrological Hazards in Site Evaluation of Nuclear Installations (To combine and supersede NS-G-3.4 and -3.5)• 5th CS March/April 2009, Vienna

• 6th CS Tsunami - May 2009, Japan

• 7th CS Final draft - July 2009, Vienna

• Approval by NUSSC for submission to MSs: October 2009

• CSS meeting: Sept 2010

• Target publication date: Feb 2011

29

(Continuation from the previous page)

3. DS 383 Safety Guide – Seismic Evaluation of Existing

Nuclear Installations Published as NS-G-2.13

• Final editing and publication process is currently underway.

4. DS405 Evaluation of Volcanic Hazards for Nuclear

Installations

• Draft to NUSSC in June 2009.

5. Revision of NS-G-1.6 – Seismic Design and Qualification for

Nuclear Power Plants

• Revision process to start in 4Q/2009


30


6. Safety Reports and TECDOCs:

• Safety Report on “Pre-earthquake planning and post-

earthquake action for existing nuclear power plants”

(to be published as a Safety Report in 4Q/2009)

• TECDOC on “Safety Significance of a Type of Seismic

Input Motions and Consequences on Nuclear Industry

Practice” Final Review

• Safety Report on “Methodologies for Seismic Safety

Evaluation for existing Nuclear Installations” 2010

• TECDOC on “Seismic instrumentation for plant

shutdown, restart and exceedence criteria” 2010

31


• Other safety guides under within ISSC framework• Site Evaluation for Nuclear Installations (NS-R-3 revision)

• Protection against Internal and External Hazards in the Design of NPPs

(combining four existing guides)

• Geotechnical Aspects of Site Evaluation and Foundations for Nuclear

Installations (To supersede NS-G-3.6)

• External Human Induced Events in Site Evaluation for Nuclear

Installations (To supersede NS-G-3.1)

• Site Survey for Nuclear Installations (Revision of Safety Series 50-SG-S9

(1984))

• And more safety reports• Safety Report on “Lessons learned from the Niigataken Chuetsu-oki

earthquake in July 2007 and the K-K NPP experience”

32

SAFETY STANDARDS – PLANNING FOR SITE EVALUATION

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6

1

NS-R-3 Site Evaluation for

Nuclear Installations Safety

Requirements (2003)

-

2

NS-G- 3.1 External Human

Induced Events in Site Evaluation

for Nuclear Pow er Plants Safety

Guide (2002)

-

3

NS-G- 3.2 D ispersion of

Radioactiv e M aterial in Air and

Wat er and Consideration of

Population D istribution in Site

Evaluation for Nuclear Pow er

Plants Safety Guide (2002)

DS 427

4

NS-G- 3.3 Ev aluat ion of Seismic

Hazards for Nuclear Power Plants

Safety Guide (2003)

DS 422

5

NS-G- 3.4 Meteoro logical Events in

Site Evaluation for Nuclear Pow er


6

NS-G- 3.5 Flood Hazard for

Nuclear Power Plants on Coastal

and R iv er Sites Safety Guide

(2004)

7

NS-G- 3.6 Geotechnical Aspects of

Site Evaluation and Foundations

for Nuclear Pow er Plants Safety

Guide (2005)

-

8

DS405 Volcanic Hazards in Site

Evaluation for Nuclear Pow er

Plants

DS 405

9SG-S9 Site Survey and Site

Selection (1984)SG-S9

Keydates:

(1) DPP Approved by NUSSC/W ASC (5) Subm iss ion to M Ss. (9) Editing and Publicat ion Comm ittee

(2) DPP Approved by CSS (6) Comments from MSs. (10) Publishing

(3) 1st D raft f inished for sending to NUSSC/W ASC (7) Approval by NUSSC

(4) NUSSC Approval (8) Approval by CSS

DS 417

SITE SELECTION AND EVALUATION: PLANNING PROCESS FOR REVIEW ING / REVIS ING SAFETY STANDARDSRev. 0 3 Date : 23 .04 .2 009

20112009 2010IAEA Safety Standard on Site

Selection and Evaluation

Previous

Years

(1) ( 5) ( 10)

( 1)

(6 ) (7) (9)

(1) (2) ( 8) ( 9)

(1)

(1) (2) (10)(6) ( 8)( 7) ( 9)(3 ) (5)( 4)

(1)

(8)

(1)

(6) ( 7)(3) (5)(4)

( 1) ( 3)( 2) ( 4)

( 2)

(2) ( 6) (7)( 3) (5)( 4)

( 2)

(10)

(2) (3) (4)

33

SS - PLANNING FOR DESIGN/EXTERNAL EVENTS

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6

1

NS-G-1.5 External Events

Excluding Earthquakes in the

Design of Nuclear Power Plants

Safety Guide (2003)

-

2

NS-G-1.6 Seismic Design and

Qualif ication for Nuclear Power


-

3

NS-G-1.7 Protection Against

Internal Fires and Explosions in

the Design of Nuclear Power


-

4

NS-G-1.11 Protection against

Internal Hazards other than Fires

and Explosions in the Design of

Nuclear Power Plants Safety

Guide (2004)

-

Keydates:

(1) DPP Approved by NUSSC/WASC (5) Submission to MSs. (9) Editing and Publication Committee

(2) DPP Approved by CSS (6) Comments from MSs. (10) Publishing

(3) 1st Draft finished for sending to NUSSC/WASC (7) Approval by NUSSC

(4) NUSSC Approval (8) Approval by CSS

DESIGN RELATED EXTERNAL / INTERNAL EVENTS: PLANNING PROCESS FOR REVIEWING / REVISING SAFETY STANDARDS Rev. 03 Date: 23.04.2009

IAEA Safety Standard on DesignPrevious

Years

2009 2010 2011

(1) (2)(TM)

34

• Current review activities on engineering safety and site selection and evaluation to be performed under ISSC

• Kashiwazaki-Kariwa (conducted as a special fact-finding programme)

• Armenia

• Jordan

• Turkey

• UAE

• Algeria

• Romania

• Egypt

• Belarus

• China

• Vietnam

• Malaysia

• Tunisia

• Bangladesh

ACTIVITY II: SAFETY REVIEW SERVICES

35

IAEA INVOLVEMENT – K-K NPP

1. “Seismic Safety Expert Mission - Preliminary Findings and Lessons Learned”, August 2007.

2. “1st Follow up Mission in relation to the Findings and Lessons Learned”, January/February 2008.

3. “Experts Meeting in relation to the Geological and Geophysical investigations”, May 2008.

4. “Experts Meeting in relation to the New Revised Seismic Hazard Assessment for the K-K NPP site”, June 2008.

5. “IAEA International Workshop on Lessons Learned from Recent Strong Earthquakes”, Kashiwazaki, Japan, June 2008.

6. “Experts Meeting in relation to the Geological and Geophysical investigations”, September 2008.

7. Presentations in international meetings and tasks related to ongoing EBP projects.

8. “2nd Follow up Mission in relation to the Findings and Lessons Learned”, 1-5 December 2008.

36

Kashiwazaki-Kariwa update

• Niigata-ken Chuetsu-oki Earthquake (July 16, 2007)• Evaluation of the Integrity of SSCs during NCOE

• Analyses, Inspections • Re-evaluation of the seismic hazard for future operation• Evaluation of the plant seismic safety to new hazard and definition of

upgrades: approved by NISA (January 23, 2009)• NISA finished its report on system function and structural robustness

(February 12, 2009) • Minister of Economy, Mr. T. Nikai, issued a statement "there is no

safety hurdle in restarting" (February 13, 2009)• Mayors (April 8, 2009) and Governor (May 8, 2009) gave consent for

restart • TEPCO restarted the reactor of Unit 7. (May 9, 2009)

• 22 months for the restart of the first (of 7) Unit!

37

• Topical researches and studies to be conducted within scope of the “EBP Seismic” project in relation to the earthquake and its effect on NPPs

• Seismic Hazard Evaluation, CAV/JMA Research/GM Simulat, • KARISMA (International analyses benchmark Unit 7 of KK NPP)• Post earthquake plant response actions

• Seismic Instrumentation and Exceedance Criteria• Detailed guidelines for Seismic safety Re-evaluation of Existing

Installations• DATABASE: Seismic and Tsunami

� OECD/NEA-IAEA Survey on NPPs that have experienced earthquakes

� On line monitoring system

• Probabilistic fault displacement assessment and other NISA/TEPCOactivities

• PSHA project by NISA, Japan.

• R&D – Regional Centres • Tsunamis and Volcanic Hazards Assessment projects

ACTIVITY III: TOPICAL PROJECTS AND R&D

38

ACTIVITY IV: EDUCATION AND TRAINING

1) ISSC Annual Workshop in Kashiwazaki

2) Training Course in Genève and ICTP

3) Workshop on issues and lessons learned in China

(Asia region)

4) International Annual Workshop in Latin America

39


1) ISSC Annual Workshop in Kashiwazaki

• Organizer: IAEA-ISSC

• Joint-organizer: NISA

• Target: November 2009 at Kashiwazaki, Japan

• Resource: 2009 Voluntary contribution of NISA for

ISSC

• Scope: Developments and projections of all

ISSC activities and Annual Plenary

Meeting of ISSC Scientific Committee

• Participants: Up to 50 experts in relation to ISSC

activities

• Output: A report (with working materials)

40


2) Training Courses a. Hazard assessment methods of critical facilities

• Organizer: University of Genève

• Co-Organizer: IAEA-ISSC

• Schedule: August 2010

• Location: Genève, Switzerland

b. ICTP course on Seismic Safety of nuclear facilities

• Organizer: International Centre for Theoretical Physics (ICTP)

• Co-Organizer: IAEA-ISSC

• Schedule: 30 November - 4 December 2009

• Location: Trieste, Italy

• Resources: ICTP budget

41


3) ISSC Workshop on issues and lessons learned from recent earthquakes in China (tentative)


• Joint-organizer: to be announced

• Target: July/August 2009 in Shanghai, China

• Resource: 2009 Voluntary contribution of European Union for ISSC

• Scope: Whole ISSC scope in the region of Asia

• Participants: Experts on Seismic hazard analysis, seismology, structure engineering relating to nuclear installation mainly from Asian countries


42


4) International Annual Workshop in Latin America


• Joint-organizer: National Atomic Energy Commission (Argentina)

• Target: 5-9, October 2009 in Buenos-Aires, Argentina

• Resources: 2009 EU Contribution for ISSC

• Scope: External Hazards for Nuclear Installations

• Participants: Experts on Seismic hazard analysis, seismology, structure engineering from Latin American countries.


43


• Other activities:

• Asia Nuclear Safety Network workshop in

South-east Asia

• Tentative target Winter 2009/2010

• Scope: Safety Requirements of NPP Siting

• 20th Structural Mechanics in Reactor Technology

(SMiRT 20) : An Special Session regarding the KK NPP

experience (Aug. 2009, Finland)

44

ACTIVITY V: KNOWLEDGE & DATABASE

• Collection of information for sharing knowledge and experiences of real earthquake effects on NPPs

• Survey on NPPs that have experienced earthquakes – collaboration with OECD/NEA –

• Creation and maintenance of a seismic safety Database

• Bibliography and reports

• Real earthquake records of Strong Ground Motion Accelerometers

• Documents produced by topical researches

• Results on experimental tests for equipment seismic qualification

• Seismic Hazard Assessment

• Earthquake Occurrence Monitoring Display System

452/27/2014 45

When strong earthquake happens, Monitoring System will give a warning on screen and will show NPP sites nearby the earthquakes and list them

according to the criteria. The system will be a web based online monitoring system.

The information obtained from the system will be used for further assessment of the NSNI/ISSC.

Monitoring System will also generate an automatic

e-mail and SMS massage and send to relevant persons.

Monitoring System for NPP Sites

nearby Strong Earthquakes

46

Screen 1: Home Page (Default)

Map of the world with location of NPP sites and location of recent earthquakes listed in the right table appears in the Home Page.

List of earthquakes with different colour

Green background for 3 < M < 5

Yellow background for 5 < M < 7

Red background for M > 7

When an earthquake M>5 happen, the earthquake is automatically selected and Screen 2 is loaded,orwhen we click one of the listed earthquake, Screen 2 is loaded.

List is in date order but,

If 3 < M < 5, Ei disappears after 1 week

If 5 < M < 7, Ei disappears after 2 weeks

If M > 7, Ei disappears after 1 monthfrom the list and the map.

(This should be customizable through user

interface, if it is possible.)

47

Screen 2: When an earthquake selected

List of NPP sites within Earthquake Concern Region and their distance to epicentre

Two ways of operation:

(1) Default selection is latest earthquake

(automatically).

(2) we can select an previous earthquake

(manually).

In both case, selected one appears in details

with different background.

Criteria for the list of NPP sitesdx = 50 km 5 > M ≥ 3

dx = 300 km 7 > M ≥ 5

dx = 1000 km M ≥ 7

5 km 18 km

35 km

37 km

49 km …

.

Distance to epicentre

Draw the page acc. to

selected dx distance

Redraw

dx

Map with locations of NPP sites and Earthquake Concern

Region (by default dxis calculated according to given criteria.)

When an NPP site is selected, Screen 3 is loaded.

dx default value is

loaded using the below

criteria. It can be given

manually.

Reference list

.

1- Reference table

---

(We can write more information

about EQ to the table.)

2- If an earthquake is in

Japan region (it will be given),

link to K-net will appears http://www.k-net.bosai.go.jp/k-

net/quake/index_en.html

48

Screen 3: Specific NPP Site data

By default, the first unit is selected. Otherwise any unit can be selected manually.

Unit details of selected unit

4949

IAEA – ISSC

THE INTERNATIONAL SEISMIC SAFETY CENTRE (ISSC)

WHERE WE ARE NOW?

WHERE ARE WE GOING?

5050

PRESENT SITUATION: “ISOLATED” APPROACH

2006 2007 2008 2009 2010

EBP

Tsunami

EBP

Seismic

EBP ISSC

Japan

NCO July 2007

Earthquake

K-K NPP

EBP ISSC EC(Proposed Project)

5 years

ISSC

CU

RR

EN

T E

PB

s

Need of Sustainability

(1SC) (2SC) (3SC)

(3SC)(2SC)

(FSC)

(FSC)(1SC)

(PM)

(PM)

5151

LONG TERM VISION – “INTEGRATED” APPROACH

2008 2009 2010 2011 2012

EBP Tsunami (2) (3)

EBP Seismic (2) (3)

EBP ISSC

Japan

(1) (2) (3)

EBP ISSC EC 5 years

ISSC

CU

RR

EN

T E

BP

s

Sustainability - stability

++

5252

IAEA – ISSC

THE INTERNATIONAL SEISMIC SAFETY

CENTRE (ISSC)

WHERE ARE WE GOING?:

AN INTEGRATED APPROACH FOR EXTERNAL EVENTS

• Natural and human induced external events

• Accidental and malevolent origin

• Hazard, design and re-evaluation

5353

CONCLUDING REMARKS

• “Lessons learned” from the occurrence of strong natural events, (tsunamis, earthquakes,

hurricanes, etc.)

• The INTERNATIONAL SEISMIC SAFETY CENTRE as a global focal point for the nuclear

engineering community in those fields.

• A need for international cooperation, openness

and transparency – Sharing of experience.

54

International Atomic Energy Agency

Thank you for your attention

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