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8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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Magnitude 8 and Greater Earthquakes Since 1900
Sorted by Date
Sorted by Magnitude
Sorted by Number of Fataities
Display Magnitude 8 Earthquakesin Google Earth.
Date - UTC - Time Latitude Longitude Magnitude Fatalities Region
1.1902-06-11 05: 50.00 148.00 8.0 Sea ofOkhotsk
2.1903-01-04 05:07 -20.00 -175.00 8.0 Tonga
http://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/magnitude8_1900_mag.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/magnitude8_1900_deaths.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/mag8earthquakes.kmlhttp://earth.google.com/http://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/magnitude8_1900_mag.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/magnitude8_1900_deaths.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/mag8earthquakes.kmlhttp://earth.google.com/8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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3.1903-08-11 04:32 36.36 22.97 8.3 southernGreece
4.1905-07-09 09:40 49.0 99.0 8.4 ongo!"a
5.1905-07-23 02:46 49.0 98.0 8.4 centra!ongo!"a
6.1906-01-31 15:36 1.0 -81.5 8.8 1#000$o!o%&"a-'cua(or
7.1906-08-17 00:40 -33.0 -72.0 8.2 3#882)a!*ara"so#$h"!e
8.1907-10-21 04:23 38.00 69.00 8.0 +fghan"stan
9.1908-12-12 12:08 -14.0 -78.0 8.2 off the coastof centra!,eru
10.1911-06-15 14:26 28.0 130.0 8.1 12uku/s!an(s#a*an
11.1914-05-26 14:22 -2. 137. 8.0 est eGu"nea
12.1915-05-01 05:00 47. 155. 8.0 ur"!e/s!an(s
13.1917-05-01 18:26 -29.0 -177.0 8.0 er%a(ec/s!an(s#eea!an(
14.1917-06-26 05:49 -15.0 -173.0 8.4 Tonga
http://earthquake.usgs.gov/regional/world/events/1906_01_31.phphttp://earthquake.usgs.gov/regional/world/events/1906_01_31.phphttp://earthquake.usgs.gov/regional/world/events/1906_01_31.phphttp://earthquake.usgs.gov/regional/world/events/1906_01_31.php8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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15.1918-08-15 12:18 5.653 123.563 8.0 50$e!e&es Sea
16.1918-09-07 17:16 45.5 151.5 8.2 ur"! /s!an(s
17.1919-04-30 07:17 -19.823 -172.215 8.2 Tongareg"on
18.1920-06-05 04:21 23.5 122.0 8.0 Ta"anreg"on
19.1920-09-20 14:39 -20.0 168.0 8.0 oa!t/s!an(s
20.1922-11-11 04:32 -28.553 -70.755 8.5 $h"!e-+rgent"naor(er
21.1923-02-03 16:01 54.0 161.0 8.5 a%chatka
22.1924-04-14 16:20 7.023 125.954 8.3 "n(anao#,h"!"**"nes
23.1928-06-17 03:19 16.33 -96.7 8.0 Oaaca#e"co
24.1931-08-10 21:18 47.1 89.8 8.0 5northern"n"ang#$h"na
25.1932-06-03 10:36 19.84 -103.99 8.1 a!"sco#e"co
26.1933-03-02 17:31 39.22 144.62 8.4 2#990Sanr"ku#a*an
27.1934-01-15 08:43 27.55 87.09 8.1 10#700"har# /n("a
http://earthquake.usgs.gov/regional/world/events/1922_11_11.phphttp://earthquake.usgs.gov/regional/world/events/1922_11_11.phphttp://earthquake.usgs.gov/regional/world/events/1922_11_11.phphttp://earthquake.usgs.gov/regional/world/events/1922_11_11.phphttp://earthquake.usgs.gov/regional/world/events/1922_11_11.phphttp://earthquake.usgs.gov/regional/world/events/1922_11_11.php8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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28.1938-02-01 19:04 -5.05 131.62 8.5 an(a Sea
29.1938-11-10 20:18 55.33 -158.37 8.2 Shu%ag"n/s!an(s#+!aska
30.1939-04-30 02:55 -10.5 158.5 8.0 So!o%on/s!an(s
31.1940-05-24 16:33 -10.5 -77.0 8.2 near the$oast ofcentra! ,eru
32.1941-11-25 18:03 37.171 -18.960 8.2 +;ores-$a*eSt. )"ncent"(ge
33.1942-08-24 22:50 -15.0 -76.0 8.2 atoGrosso#ra;"!
34.1943-04-06 16:07 -30.75 -72.0 8.2 18off the coastof$o
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38.1946-08-04 17:51 19.25 -69.00 8.0 100>o%"n"cane*u&!"c
39.1946-12-20 19:19 32.5 134.5 8.1 1#330anka"(o#a*an
40.1948-01-24 17:46 10.5 122.0 8.2 72,ana#,h"!"**"nes
41.1949-08-22 04:01 53.62 -133.27 8.1 ?ueen$har!otte
/s!an(# .$.#$ana(a
42.1950-08-15 14:09 28.5 96.5 8.6 1#526+ssa%-T"&et
43.1952-03-04 01:22 42.5 143.0 8.1 31@okka"(o#a*anreg"on
44.1952-11-04 16:58 52.76 160.06 9.0 a%chatka#uss"a
45.1957-03-09 14:22 51.56 -175.39 8.6 +n(reanof/s!an(s#+!aska
46.1957-12-04 03:37 45.15 99.21 8.1 Go&"-+!ta"#ongo!"a
47.1958-11-06 22:58 44.329 148.623 8.3 ur"! /s!an(s
48.1959-05-04 07:15 53.351 159.645 8.2 1near theeast coastofa%chatka
http://earthquake.usgs.gov/regional/world/events/1946_08_04.phphttp://earthquake.usgs.gov/regional/world/events/1946_08_04.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquake.usgs.gov/regional/world/events/1950_08_15.phphttp://earthquake.usgs.gov/regional/world/events/1952_11_04.phphttp://earthquake.usgs.gov/regional/world/events/1952_11_04.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/world/events/1958_11_06.phphttp://earthquake.usgs.gov/regional/world/events/1946_08_04.phphttp://earthquake.usgs.gov/regional/world/events/1946_08_04.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquakescanada.nrcan.gc.ca/historic_eq/20th/1949_e.phphttp://earthquake.usgs.gov/regional/world/events/1950_08_15.phphttp://earthquake.usgs.gov/regional/world/events/1952_11_04.phphttp://earthquake.usgs.gov/regional/world/events/1952_11_04.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/states/events/1957_03_09.phphttp://earthquake.usgs.gov/regional/world/events/1958_11_06.php8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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49.1960-05-22 19:11 -38.29 -73.05 9.5 1#655$h"!e
50.1963-10-13 05:17 44.9 149.6 8.5 ur"! /s!an(s
51.1964-03-28 03:36 61.02 -147.65 9.2 125,r"nce"!!"a%Soun(#+!aska
52.1965-02-04 05:01 51.21 -178.50 8.7 at /s!an(s#+!aska
53.1966-10-17 21:41 -10.807 -78.684 8.1 125near thecoast ofcentra! ,eru
54.1968-05-16 00:49 40.903 143.346 8.2 47off the eastcoast of@onshu#a*an
55.1969-08-11 21:27 43.478 147.815 8.2 ur"! /s!an(s
56.1970-07-31 17:08 -1.49 -72.56 8.0 $o!o%&"a
57.1971-01-10 07:17 -3.132 139.697 8.1 ,a*ua#/n(ones"a
58.1974-10-03 14:21 -12.254 -77.524 8.1 78near thecoast ofcentra! ,eru
59.1976-08-16 16:11 6.292 124.090 8.0 8#000"n(anao#,h"!"**"nes
60.1977-06-22 12:08 -22.878 -175.900 8.1 Tonga
http://earthquake.usgs.gov/regional/world/events/1960_05_22.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1965_02_04.phphttp://earthquake.usgs.gov/regional/states/events/1965_02_04.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.phphttp://earthquake.usgs.gov/regional/world/events/1960_05_22.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1964_03_28.phphttp://earthquake.usgs.gov/regional/states/events/1965_02_04.phphttp://earthquake.usgs.gov/regional/states/events/1965_02_04.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/regional/world/events/1966_10_17.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.phphttp://earthquake.usgs.gov/eqcenter/eqarchives/year/mag8/%20/regional/world/events/1974_10_03.php8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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reg"on
61.1977-08-19 06:08 -11.085 118.464 8.3 100south of
Su%&aa#/n(ones"a
62.1979-12-12 07:59 1.598 -79.358 8.1 600near thecoast of'cua(or
63.1985-03-03 22:47 -33.135 -71.871 8.0 177offshore
)a!*ara"so#$h"!e
64.1985-09-19 13:17 18.190 -102.533 8.0 9#500"choacan#e"co
65.1986-05-07 22:47 51.520 -174.776 8.0 +n(reanof/s!an(s#+!eut"an
/s!an(s#+!aska
66.1989-05-23 10:54 -52.341 160.568 8.1 ac
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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e"co
71.1996-02-17 05:59 -0.891 136.952 8.2 166/r"an aa
reg"on#/n(ones"a
72.1998-03-25 03:12 -62.877 149.527 8.1 a!!en/s!an(sreg"on
73.2000-11-16 04:54 -3.980 152.169 8.0 2e /re!an(
reg"on#,a*ua eGu"nea
74.2001-06-23 20:33 -16.264 -73.641 8.4 75near thecoast ofsouthern,eru
75.2003-09-25 19:50 41.815 143.910 8.3 @okka"(o#a*anreg"on
76.2004-12-23 14:59 -49.312 161.345 8.1 north ofac
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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80.2006-11-15 11:14 46.592 153.226 8.3 ur"! /s!an(s
81.2007-01-13 04:23:21 46.243 154.524 8.1 'ast of the
ur"! /s!an(s
82.2007-04-01 20:39:58 -8.466 157.043 8.1 34So!o%on/s!an(s
83.2007-08-15 23:40:57 -13.386 -76.603 8.0 650ear the$oast of$entra! ,eru
84.2007-09-12 11:10:26 -4.438 101.367 8.5 25SouthernSu%atra#/n(ones"a
South Latitudes and West Longitudes are indicated by
NEGA!"E nu#bers.
Source$ %SGS NE!& 'DE catalog( Data are preli#inary.
/n *artnersh"* "th n e hr*
+&out =s
$ontact =s
Search
+ccess"&"!"tBO/+,r"Aac,o!"c"es an( ot"ces
=.S. >e*art%ent of the /nter"orC =.S. Geo!og"ca!
SurAe
=:
htt*:DDearth
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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Earthquakes Magnitude 8.0 and Greater Since 1990
Year Month Day Time
UT
!atitude !ongitude De"th
#km$
Magnitude %egion
1 1994 06 09 00:33:16.2 -13.841 -67.533 631 8.2 Northern
Bolivia
2 1994 10 04 13:22:55.8 43.773 147.321 14 8.3 Kuril
Islands
3 1995 07 30 05:11:23.6 -23.340 -70.294 46 8.0 Near oast
o!
Northern
hile
4 1995 10 09 15:35:53.9 19.055 -104.205 33 8.0 Near oast
o! "alis#o$
%e&i#o
5 1996 02 17 05:59:30.5 -0.891 136.952 33 8.2 Irian "a'a
(e)ion$
Indonesia
6 1998 03 25 03:12:25.0 -62.877 149.527 10 8.1 Ballen'
Islands
(e)ion
7 2000 11 16 04:54:56.7 -3.980 152.169 33 8.0 Ne*Ireland
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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(e)ion$
+.N.,.
8 2001 06 23 20:33:14.1 -16.265 -73.641 33 8.4 Near oast
o! +eru
9 2003 09 25 19:50:06.3 41.815 143.910 27 8.3 oaido$"a/an
(e)ion
10 2004 12 23 14:59:04.3 -50.240 160.133 10 8.1 North o!
%a#uarie
Island
11 2004 12 26 00:58:53.4 3.307 95.951 10 9.1 !! est
oast o!
Northern
uatra
12 2005 03 28 16:09:36.2 2.074 97.013 30 8.6 Northern
uatra$
Indonesia
13 2006 05 03 15:26:40.2 -20.187 -174.123 55 8.0 on)a
14 2006 11 15 11:14:13.5 46.592 153.226 10 8.3 Kuril
Islands
15 2007 01 13 04:23:21.1 46.243 154.524 10 8.1 ast o! the
Kuril
Islands
16 2007 04 01 20:39:57.4 -8.487 156.986 18 8.1 oloon
Islands
17 2007 08 15 23:40:57.9 -13.353 -76.511 39 8.0 Near the
oast o!
entra
+eru
18 2007 09 12 11:10:26.8 -4.438 101.367 34 8.5 outhern
uatra$
Indonesia
South Latitudes and West Longitudes are indicated by NEGA!"E nu#bers.
Source$ %SGS NE!& 'DE catalog( Data are preli#inary.
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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Deaths &rom Magnitude 8 and Greater Earthquakes
Since 1990
Date
UT%egion
Magnitude 'um(er
)i**ed
1994 06 09 Northern Bolivia 8.2 10
1994 10 04 Kuril Islands 8.3 11
1995 07 30 Near oast o! Northern hile 8.0 3
1995 10 09 Near oast o! "alis#o$ %e&i#o 8.0 49
1996 02 17 Irian "a'a (e)ion$ Indonesia 8.2 166
1998 03 25 Ballen' Islands (e)ion 8.1 0
2000 11 16 Ne* Ireland (e)ion$ +.N.,. 8.0 2
2001 06 23 Near oast o! +eru 8.4 138
2003 09 25 oaido$ "a/an (e)ion 8.3 0
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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2004 12 23 North o! %a#uarie Island 8.1 0
2004 12 26 !! est oast o! Northern uatra 9.1 283106
2005 03 28 Northern uatra$ Indonesia 8.6 1313
2006 05 03 on)a 8.0 0
2006 11 15 Kuril Islands 8.3 0
2007 01 13 ast o! the Kuril Islands 8.1 0
2007 04 01 oloon Islands 8.1 34
2007 08 15 Near the oast o! entra +eru 8.0 650
2007 09 12 outhern uatra$ Indonesia 8.5 25
otal 285507
Are Earthquakes )eally on the !ncrease*
Earthquake +acts and Statistics Magnitude De,initions %sed by the NE!&
he )ichter Magnitude Scale
http://earthquake.usgs.gov/learning/topics/increase_in_earthquakes.phphttp://neic.usgs.gov/neis/eqlists/eqstats.htmlhttp://neic.usgs.gov/neis/phase_data/mag_formulas.htmlhttp://earthquake.usgs.gov/learning/topics/richter.phphttp://earthquake.usgs.gov/learning/topics/increase_in_earthquakes.phphttp://neic.usgs.gov/neis/eqlists/eqstats.htmlhttp://neic.usgs.gov/neis/phase_data/mag_formulas.htmlhttp://earthquake.usgs.gov/learning/topics/richter.php8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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Magnitude ! "ntensity
Magnitude De&initions Used (y the 'E+
Designator 'ame ,ormu*a
%* %oent %a)nitude ans and Kanaori !orula 1979
M- #/$ *og Mo 2 10.3
*here Mois the s#alar oent o! the est doule
#ou/le in d'ne-#.
%e ner)' %a)nitude hese ener)' a)nitudes are #o/uted !ro the
radiated ener)' usin) the ho' and Boat*ri)ht
1995 !orula
Me #/$ *og Es 2 /.9
*here Esis the radiated seisi# ener)' in
Ne*ton-eters. Me$ #o/uted !ro hi)h
!reuen#' seisi# data$ is a easure o! the
seisi# /otential !or daa)e.
%s ur!a#e ave
%a)nitude
I;+I !orula
Ms *og #4T$ 5 1.66 *og D 5 .
*here
4
is the a&iu )round a/litude in
i#roeters i#rons o! the verti#al
#o/onent o! the sur!a#e *ave *ithin the
/eriod ran)e 18
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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a)nitudes !ro re/orted and ; data.
I! the un#ertaint' o! the #o/uted de/th is
#onsidered )reat enou)h that the de/th #ould e
less than 50 iloeters$ an %s value a' still e
/ulished$ #o/uted ' the I;+I !orula and
N #orre#ted !or de/th.
In )eneral$ the %s a)nitude is ore reliale than
the a)nitude as a eans o! 'ieldin) the
relative @siAe@ o! a shallo*-!o#us earthuae.
o/ressional Bod'
ave +-*ave%a)nitude
m( *og #4T$ 57#Dh$
de!ined ' ,utener)and (i#hter1956 ee/t
that T$ the /eriod in se#onds$ is restri#ted to 0.1
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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Magnitude # "ntensity $om%arison
Magnitude and !ntensity #easure di,,erent characteristics o, earthquakes.
Magnitude #easures the energy released at the source o, the earthquake.
Magnitude is deter#ined ,ro# #easure#ents on seis#ographs. !ntensity#easures the strength o, shaking produced by the earthquake at a certain
location. !ntensity is deter#ined ,ro# e,,ects on people- hu#an structures- and
the natural eniron#ent.
he ,ollo/ing table gies intensities that are typically obsered at locations
near the epicenter o, earthquakes o, di,,erent #agnitudes.
Magnitude /
Intensity Comparison
Magnitude TypicalMaximumModifiedMercalli
Intensity
1! - "! I
"! - "# II - III
$! - $# I% - %
&! - %I - %II
'! - '# %II - I(
)!an(h"gher
%IIIorh"gher
*++re,iated Modified Mercalli Intensity
cale
I. ot fe!t ece*t & a Aer fe un(er es*ec"a!!
faAora&!e con("t"ons.
II. Be!t on! & a fe *ersons at rest# es*ec"a!!
on u**er f!oors of &u"!("ngs.
III. Be!t "shes# "n(os# (oors ("stur&e(F a!!s %ake
crack"ng soun(. Sensat"on !"ke heaA truckstr"k"ng &u"!("ng. Stan("ng %otor cars rocke(
not"cea&!.
%. Be!t & near! eAeroneF %an aakene(.
So%e ("shes# "n(os &roken. =nsta&!e o&ects
oAerturne(. ,en(u!u% c!ocks %a sto*.
%I. Be!t & a!!# %an fr"ghtene(. So%e heaA
furn"ture %oAe(F a fe "nstances of fa!!en
8/9/2019 Magnitudes, Frmulas, Estadisticas, Intensidades
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*!aster. >a%age s!"ght.
%II. >a%age neg!"g"&!e "n &u"!("ngs of goo(
(es"gn an( construct"onF s!"ght to %o(erate "n
e!!-&u"!t or("nar structuresF cons"(era&!e
(a%age "n *oor! &u"!t or &a(! (es"gne(
structuresF so%e ch"%nes &roken.
%III. >a%age s!"ght "n s*ec"a!! (es"gne(
structuresF cons"(era&!e (a%age "n or("nar
su&stant"a! &u"!("ngs "th *art"a! co!!a*se.
>a%age great "n *oor! &u"!t structures. Ba!! of
ch"%nes# factor stacks# co!u%ns# %onu%ents#
a!!s. @eaA furn"ture oAerturne(.
I(. >a%age cons"(era&!e "n s*ec"a!! (es"gne(
structuresF e!!-(es"gne( fra%e structures
thron out of *!u%&. >a%age great "n
su&stant"a! &u"!("ngs# "th *art"a! co!!a*se.
u"!("ngs sh"fte( off foun(at"ons.
(. So%e e!!-&u"!t oo(en structures (estroe(F
%ost %asonr an( fra%e structures (estroe("th foun(at"ons. a"!s &ent.
(I. Be# "f an %asonrH structures re%a"n
stan("ng. r"(ges (estroe(. a"!s &ent great!.
(II. >a%age tota!. "nes of s"ght an( !eAe! are
("storte(. O&ects thron "nto the a"r.
/n *artnersh"* "th n e hr*
=: htt*:DDearth