PAGER - M 5.4 - EASTERN HONSHU, JAPAN

Alert level does not include impacts from earthquake-related hazards such as tsunamis, landslides, fires or liquefaction.

Earthquake Shaking Alert Level: GREEN

Download Alert PDFWhat's this?Thursday, September 19th, 2013 at 17:25:06 UTC (02:25:06 local)Location: 37.1° N, 140.8° EDepth: 8kmEvent Id: USB000JW8UAlert Version: 12Created: 11 weeks, 4 days after earthquake.
Global Location

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Estimated FatalitiesFatality Alert Level: GREEN
ESTIMATED FATALITY ALERT: GREEN
ESTIMATED FATALITIES (LEVEL)Probability (%)
0 (GREEN)
 
68
1 to 9 (YELLOW)
 
30
10 to 99 (YELLOW)
 
2
100 to 999 (ORANGE)0
1 to 10 thousand (RED)0
10 to 100 thousand (RED)0
100 thousand + (RED)0
Estimated Economic LossesEconomic Alert Level: GREEN
ESTIMATED ECONOMIC ALERT: GREEN
ESTIMATED VALUE IN USD (LEVEL)Probability (%)
0 to 1 million (GREEN)
 
65
1 to 10 million (YELLOW)
 
30
10 to 100 million (YELLOW)
 
4
100 million to 1 billion (ORANGE)0
1 to 10 billion (RED)0
10 to 100 billion (RED)0
100 billion + (RED)0

Detailed Information

Estimated Population Exposed to Earthquake Shaking
Estimated Modified Mercalli IntensityIII-IIIIVVVIVIIVIIIIXX
Est. Population Exposure---*38,877k*2,651k141k224k2k000
Perceived ShakingNot FeltWeakLightModerateStrongVery StrongSevereViolentExtreme
Potential Structure DamageResistantnonenonenoneV. LightLightModerateModerate/HeavyHeavyV. Heavy
VulnerablenonenonenoneLightModerateModerate/HeavyHeavyV. HeavyV. Heavy
*Estimated exposure only includes population within calculated shake map area
Population Exposure
Population per ~1 sq. km. from LandScan
Population Exposure Map

Structure Information Summary

Overall, the population in this region resides in structures that are resistant to earthquake shaking, though some vulnerable structures exist.

Historical Earthquakes (with MMI)

Date (UTC)Dist (km)MagMax MMI (#)Shaking Deaths
1984-09-183456.8V (92k)0
1980-09-231515.3V (13m)1
1974-05-083326.7IX (30k)27

Recent earthquakes in this area have caused secondary hazards such as landslides and fires that might have contributed to losses.

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMICityPopulation
VIIwaki357k
IVIshikawa19k
IVKitaibaraki51k
IVTakahagi34k
IVSukagawa69k
IVNamie22k
IVFukushima-shi294k
IVMito-shi247k
IIIUtsunomiya-shi450k
IIISendai-shi1,038k
IIISaitama1,193k

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11973-11-19
13:01 UTC
6.538.95° N, 141.94° E
55km
JPVII (205 k)00
21974-05-08
23:33 UTC
6.734.57° N, 138.77° E
12km
JPIX (30 k)2730tsunami
31974-06-27
01:49 UTC
6.133.81° N, 139.23° E
24km
JPVII (7 k)00
41974-07-08
05:45 UTC
6.136.43° N, 141.14° E
45km
JPVI (1,050 k)00
51974-08-03
18:16 UTC
5.636.02° N, 139.9° E
51km
JPVI (9,877 k)22
61974-11-15
23:32 UTC
5.835.82° N, 141.07° E
42km
JPVII (21 k)00
71976-11-08
08:19 UTC
6.238.14° N, 142.25° E
44km
JPVI (2 k)00
81978-01-14
03:24 UTC
6.634.81° N, 139.29° E
13km
JPIX (28 k)2125tsunami
91978-01-14
22:31 UTC
5.834.81° N, 138.83° E
3km
JPVIII (738)00
101978-04-06
23:29 UTC
635.25° N, 141.11° E
31km
JPVI (116 k)00
111978-06-12
08:06 UTC
5.738.23° N, 142.11° E
46km
JPV (281 k)028tsunami
121978-06-12
08:14 UTC
7.638.22° N, 142.02° E
53km
JPVIII (1,304 k)2222
131978-06-14
11:34 UTC
6.438.42° N, 142.39° E
41km
JPVI (16 k)00
141979-07-11
01:58 UTC
5.936.64° N, 141.29° E
42km
JPVI (170 k)00
151980-06-29
07:20 UTC
6.434.85° N, 139.29° E
17km
JPIX (60)00landslide, tsunami
161980-09-23
19:10 UTC
5.336° N, 139.74° E
83km
JPV (12,718 k)11
171980-09-24
17:54 UTC
635.52° N, 140.06° E
72km
JPVI (15,272 k)22
181981-01-18
18:11 UTC
738.64° N, 142.9° E
39km
JPVI (160 k)00
191981-01-18
18:17 UTC
6.938.71° N, 142.8° E
46km
JPVI (246 k)00
201981-01-22
19:34 UTC
6.438.28° N, 142.8° E
27km
JPV (203 k)00
211981-09-02
09:24 UTC
5.735.8° N, 141° E
44km
JPVI (465 k)00
221982-03-27
00:19 UTC
6.134.76° N, 140.96° E
26km
JPVI (2)00
231982-07-23
14:23 UTC
736.3° N, 141.78° E
24km
JPVI (1,855 k)00
241982-12-28
01:52 UTC
5.533.82° N, 139.42° E
17km
JPVI (149)00
251982-12-28
06:37 UTC
6.233.88° N, 139.45° E
20km
JPVIII (3)00
261982-12-29
07:02 UTC
5.833.8° N, 139.36° E
19km
JPVI (387)00
271983-02-27
12:14 UTC
5.935.95° N, 140.04° E
67km
JPVI (13,082 k)00
281983-03-15
17:27 UTC
5.434.8° N, 137.58° E
35km
JPVII (259 k)11
291983-07-01
22:03 UTC
5.636.99° N, 141.03° E
43km
JPVI (395 k)00
301983-08-08
03:47 UTC
5.635.51° N, 139.05° E
18km
JPVII (7 k)11landslide
311983-10-03
13:33 UTC
633.99° N, 139.48° E
10km
JPVIII (2 k)00
321984-01-17
15:31 UTC
5.736.47° N, 141.19° E
44km
JPV (1,842 k)00
331984-02-13
16:53 UTC
5.335.55° N, 139.08° E
42km
JPVI (464 k)00
341984-09-13
23:48 UTC
6.235.8° N, 137.47° E
1km
JPIX (2)2429landslide
351984-09-14
22:14 UTC
5.735.77° N, 137.42° E
22km
JPVII (97 k)00
361984-09-18
17:02 UTC
6.834.02° N, 141.52° E
45km
JPV (92 k)00
371985-10-04
12:25 UTC
5.935.86° N, 140.08° E
72km
JPVI (10,069 k)00
381985-10-18
03:22 UTC
5.337.68° N, 136.9° E
16km
JPV (162 k)00
391986-02-12
02:59 UTC
6.236.43° N, 140.98° E
45km
JPVII (333 k)00
401986-06-24
02:53 UTC
6.634.8° N, 140.72° E
25km
JPVII (46 k)00
411986-11-22
00:41 UTC
5.934.52° N, 139.56° E
2km
JPVI (3 k)00
421986-12-30
00:38 UTC
5.636.63° N, 137.89° E
16km
JPVIII (1)00
431987-01-09
06:14 UTC
6.639.88° N, 141.62° E
75km
JPVII (294 k)00
441987-02-06
12:23 UTC
6.437.02° N, 141.71° E
38km
JPVI (366 k)00
451987-02-06
13:16 UTC
6.737.02° N, 141.73° E
41km
JPVII (11 k)00
461987-03-24
12:49 UTC
5.637.48° N, 137.89° E
26km
JPVI (77 k)00
471987-04-07
00:40 UTC
6.637.38° N, 141.69° E
42km
JPVII (30 k)00
481987-04-16
19:23 UTC
637.09° N, 141.53° E
41km
JPVI (159 k)00
491987-04-22
20:13 UTC
6.637.17° N, 141.4° E
51km
JPVII (345 k)00
501987-09-24
04:55 UTC
5.936.64° N, 141.26° E
45km
JPVI (230 k)00
511987-12-17
02:08 UTC
6.535.41° N, 140.31° E
49km
JPVII (8,018 k)22
521988-03-17
20:34 UTC
5.635.66° N, 139.62° E
91km
JPV (31,671 k)00
531988-09-26
08:23 UTC
5.735.55° N, 141.01° E
31km
JPVII (103 k)00
541989-02-19
12:27 UTC
5.536.04° N, 139.86° E
45km
JPVI (9,262 k)11
551989-07-09
02:09 UTC
5.234.99° N, 139.15° E
10km
JPVII (147)00landslide
561989-10-13
21:19 UTC
5.334.79° N, 139.55° E
20km
JPVI (8 k)00
571989-11-01
18:25 UTC
7.439.92° N, 142.79° E
29km
JPVII (41 k)00
581990-02-20
06:53 UTC
6.434.74° N, 139.27° E
11km
JPVIII (10 k)00
591990-08-05
03:36 UTC
6.136.41° N, 141.19° E
27km
JPVI (1,042 k)00
601991-08-06
14:49 UTC
5.935.81° N, 141.11° E
29km
JPVII (143 k)00
611992-02-01
19:04 UTC
5.835.17° N, 139.67° E
100km
JPV (26,607 k)00
621992-07-18
08:39 UTC
6.939.62° N, 143.11° E
31km
JPVI (100 k)00
631993-02-07
13:27 UTC
6.337.7° N, 137.28° E
9km
JPVII (4 k)00landslide
641994-03-11
03:12 UTC
5.434.2° N, 139.22° E
5km
JPVII (2 k)00
651995-01-06
22:37 UTC
740.35° N, 142.22° E
28km
JPVIII (8 k)00
661995-01-07
02:36 UTC
640.35° N, 142.4° E
33km
JPVI (37 k)00
671995-01-09
18:00 UTC
5.935.93° N, 141.4° E
37km
JPVI (78 k)00
681995-04-01
03:49 UTC
5.437.95° N, 139.21° E
11km
JPVIII (225)00
691995-10-06
12:43 UTC
5.934.12° N, 139.11° E
6km
JPVIII (7)00
701996-03-06
14:35 UTC
5.635.46° N, 139.01° E
20km
JPVII (5 k)00
711996-08-10
18:12 UTC
5.939° N, 140.55° E
9km
JPVI (158)00
721996-08-10
18:54 UTC
5.438.97° N, 140.61° E
25km
JPVII (28 k)00
731996-08-10
23:10 UTC
5.738.96° N, 140.66° E
13km
JPVIII (55)00
741996-12-21
01:28 UTC
5.536.12° N, 139.77° E
60km
JPVI (11,098 k)00
751997-03-04
03:51 UTC
5.634.96° N, 139.18° E
13km
JPVII (52 k)00
761997-03-16
05:51 UTC
5.634.9° N, 137.48° E
38km
JPVII (12 k)00
771998-02-21
00:55 UTC
5.137.28° N, 138.71° E
19km
JPVII (5 k)00
781998-05-03
02:09 UTC
5.534.93° N, 139.12° E
9km
JPV (145 k)00
791998-06-14
13:17 UTC
5.735.42° N, 140.5° E
33km
JPVII (428 k)00
801998-08-15
18:31 UTC
5.436.33° N, 137.68° E
6km
JPVII (166)00
811998-08-28
23:46 UTC
5.335.58° N, 139.91° E
59km
JPV (30,353 k)00
821998-09-03
07:58 UTC
5.839.79° N, 140.75° E
6km
JPVI (360)00
831998-09-15
07:24 UTC
5.138.37° N, 140.61° E
10km
JPVII (55)00
841999-03-25
23:31 UTC
5.236.49° N, 140.48° E
56km
JPV (1,894 k)00
852000-06-03
08:54 UTC
6.135.57° N, 140.46° E
51km
JPVII (1,434 k)00
862000-06-29
04:02 UTC
5.534.13° N, 139.52° E
34km
JPVII (4 k)00
872000-06-29
06:30 UTC
5.534.08° N, 139.35° E
4km
JPVI (4 k)00
882000-07-01
07:01 UTC
6.134.22° N, 139.17° E
13km
JPIX (33)01landslide, tsunami
892000-07-02
20:03 UTC
5.634.16° N, 139.25° E
25km
JPVII (8 k)00
902000-07-08
18:57 UTC
5.834.17° N, 139.17° E
11km
JPVIII (2 k)00
912000-07-15
01:30 UTC
634.39° N, 139.26° E
14km
JPVIII (3 k)00landslide
922000-07-20
18:39 UTC
636.55° N, 140.94° E
31km
JPVI (541 k)00
932000-07-23
21:52 UTC
5.534.2° N, 139.14° E
17km
JPVIII (2 k)00
942000-07-27
01:49 UTC
5.534.23° N, 139.43° E
7km
JPVI (6 k)00
952000-07-27
02:12 UTC
5.534.15° N, 139.3° E
17km
JPVI (4 k)00
962000-07-30
00:18 UTC
5.733.96° N, 139.37° E
10km
JPVI (4 k)00
972000-07-30
12:25 UTC
6.533.93° N, 139.38° E
15km
JPVIII (1 k)00landslide
982000-07-30
12:48 UTC
5.533.98° N, 139.33° E
12km
JPVI (2 k)00
992000-08-18
01:52 UTC
5.734.16° N, 139.2° E
19km
JPVII (2 k)00
1002000-12-04
16:47 UTC
5.735.8° N, 140.91° E
40km
JPVII (94 k)00
1012001-04-03
14:57 UTC
5.334.93° N, 138.08° E
30km
JPVII (24 k)00
1022002-06-14
02:42 UTC
4.936.24° N, 139.83° E
56km
JPV (2,522 k)00
1032002-11-03
03:37 UTC
6.438.95° N, 141.94° E
39km
JPVI (31 k)00
1042003-05-11
15:57 UTC
5.335.85° N, 139.97° E
60km
JPV (26,839 k)00
1052003-05-26
09:24 UTC
738.86° N, 141.5° E
68km
JPVIII (443)00fire, landslide
1062003-07-25
15:13 UTC
5.438.5° N, 141.04° E
12km
JPVIII (35)00landslide
1072003-07-25
22:13 UTC
638.48° N, 141.03° E
6km
JPVIII (57 k)00
1082003-07-26
07:56 UTC
5.238.56° N, 141.04° E
13km
JPVII (44 k)00
1092003-09-20
03:54 UTC
5.635.11° N, 140.21° E
55km
JPVI (116 k)00
1102003-10-31
01:06 UTC
737.87° N, 142.59° E
20km
JPV (7,236 k)00
1112003-11-14
18:43 UTC
5.736.47° N, 141.07° E
43km
JPV (1,333 k)00
1122004-04-03
23:02 UTC
5.936.41° N, 141.07° E
43km
JPV (1,197 k)00
1132004-07-17
06:10 UTC
5.634.76° N, 140.24° E
51km
JPVI (3 k)00
1142004-10-06
14:40 UTC
5.735.94° N, 139.94° E
67km
JPVI (1,584 k)00
1152004-10-23
08:56 UTC
6.637.26° N, 138.79° E
16km
JPIX (71 k)1648fire, landslide
1162004-10-23
08:59 UTC
5.737.26° N, 138.82° E
16km
JPVIII (3 k)00
1172004-10-23
09:03 UTC
6.137.34° N, 138.87° E
14km
JPVII (194 k)00
1182004-10-23
09:11 UTC
5.837.26° N, 138.66° E
18km
JPVII (2)00
1192004-10-23
09:34 UTC
6.337.34° N, 138.88° E
16km
JPVIII (39 k)00
1202004-10-23
09:57 UTC
5.537.22° N, 138.72° E
13km
JPVII (15 k)00
1212004-10-23
10:36 UTC
5.737.21° N, 138.65° E
12km
JPV (144 k)00
1222004-10-23
10:45 UTC
5.737.29° N, 138.66° E
18km
JPVI (355)00
1232004-10-24
21:04 UTC
5.637.31° N, 138.71° E
12km
JPVII (14 k)00
1242004-10-27
01:40 UTC
5.937.31° N, 138.93° E
12km
JPVII (9 k)00
1252004-11-03
23:57 UTC
5.237.46° N, 138.81° E
15km
JPVII (166 k)00
1262004-11-08
02:15 UTC
5.537.4° N, 138.87° E
9km
JPVII (56 k)00landslide
1272004-11-09
18:43 UTC
537.4° N, 138.85° E
10km
JPVII (54 k)00landslide
1282005-01-19
06:11 UTC
6.534.06° N, 141.51° E
21km
JPV (389 k)00
1292005-02-15
19:46 UTC
5.436° N, 139.72° E
48km
JPV (11,071 k)00
1302005-04-10
22:22 UTC
5.935.6° N, 140.4° E
48km
JPV (13,054 k)00
1312005-06-19
16:15 UTC
5.735.63° N, 140.5° E
50km
JPVI (2,959 k)00
1322005-06-20
04:03 UTC
4.937.22° N, 138.45° E
19km
JPVII (332)00
1332005-07-23
07:34 UTC
5.935.52° N, 139.97° E
69km
JPVI (1,728 k)00
1342005-08-16
02:46 UTC
7.238.27° N, 142.03° E
40km
JPVII (208 k)00tsunami
1352005-08-21
02:29 UTC
4.837.29° N, 138.62° E
14km
JPVI (96 k)00
1362005-10-16
07:05 UTC
536.02° N, 139.79° E
50km
JPV (13,937 k)00
1372005-10-19
11:44 UTC
6.336.38° N, 140.86° E
42km
JPVI (70 k)00
1382005-12-02
13:13 UTC
6.538.07° N, 142.13° E
41km
JPVII (217)00
1392005-12-16
18:32 UTC
638.49° N, 141.93° E
47km
JPVI (228 k)00
1402006-04-20
17:50 UTC
5.634.86° N, 139.21° E
22km
JPVI (10 k)00
1412007-03-25
00:41 UTC
6.737.34° N, 136.54° E
8km
JPIX (25 k)11tsunami
1422007-07-16
01:13 UTC
6.637.52° N, 138.46° E
12km
JPIX (114)99landslide, tsunami
1432007-07-16
06:37 UTC
5.737.5° N, 138.47° E
15km
JPVII (82)00
MMICityPopulation
VIIwaki357k
IVIshikawa19k
IVKitaibaraki51k
IVTakahagi34k
IVSukagawa69k
IVNamie22k
IVKoriyama341k
IVFunehiki24k
IVMiharu20k
IVMotomiya23k
IVDaigo22k
IVNihommatsu36k
IVHitachi186k
IVOmiya28k
IVKuroiso61k
IVFunaishikawa35k
IVOtawara59k
IVHitachi-Naka157k
IVKatsuta156k
IVFukushima-shi294k
IVYaita36k
IVMotegi20k
IVInawashiro17k
IVUjiie30k
IVMito-shi247k
IVYanagawa21k
IVKasama29k
IIITomobe37k
IIIKarasuyama18k
IIIOkunoya35k
IIINaka47k
IIIAmi48k
IIIIshioka52k
IIIUtsunomiya-shi450k
IIIMooka66k
IIIKakuda33k
IIIKitakata37k
IIIKaminokawa31k
IIIOarai19k
IIIHobara25k
IIIKanuma95k
IIIOkawara23k
IIIShimodate64k
IIIYonezawa94k
IIIMashiko26k
IIIMibu40k
IIIYuki52k
IIITakahata26k
IIIMarumori17k
IIITochigi82k
IIIOyama160k
IIIKashima-shi66k
IIIIwase22k
IIIItako26k
IIIIshige25k
IIIShiroishi39k
IIIImaichi64k
IIIUshiku80k
IIIEdosaki21k
IIIInashiki47k
IIIWatari36k
IIINagai31k
IIIKatori-shi83k
IIISendai-shi1,038k
IIISawara47k
IIIMakabe19k
IIISano83k
IIINikko16k
IIIOmigawa26k
IIIMitsukaido41k
IIIKoga58k
IIIFujioka18k
IIISakai27k
IIIIwai43k
IIITsukuba176k
IIIShiogama60k
IIIRyugasaki86k
IIIFujishiro33k
IIIKurihashi28k
IIIIwanuma42k
IIITatebayashi81k
IIIAshikaga160k
IIIToride81k
IIIMoriya57k
IIISatte55k
IIITomiya43k
IIITendo65k
IIIHasaki39k
IIISugito50k
IIIKuki73k
IIIKiryu110k
IIIKazo71k
IIIHanyu59k
IIINarita101k
IIIAbiko132k
IIINoda121k
IIIKisai21k
IIIAsahi42k
IIIShobu22k
IIIShiraoka51k
IIIOta152k
IIIKasukabe207k
IIIKashiwa340k
IIIYokaichiba33k
IIISagae44k
IIIShiroi55k
IIIYoshikawa61k
IIINagareyama156k
IIIMuramatsu20k
IIIMenuma28k
IIIYamoto32k
IIIShisui20k
IIIIshinomaki117k
IIIKoshigaya317k
IIIGyoda86k
IIIHasuda65k
IIISakura183k
IIIKaminoyama36k
IIIShibata81k
IIIKonosu88k
IIIIwatsuki109k
IIIGosen37k
IIIFukiage28k
IIIKamagaya-shi106k
IIIYashio-shi81k
IIITanuma29k
IIISuibara20k
IIISakai31k
IIIOkegawa75k
IIIMatsudo470k
IIIKumagaya156k
IIIAgeo219k
IIIYachimata83k
IIISoka231k
IIIIsesaki131k
IIIFukaya107k
IIISaitama1,193k
IIIYono1,078k
IIIHatogaya53k
IIIYotsukaido87k
IIIWakuya18k
IIINaruto26k
IIINarashino156k
IIIKogota20k
IIIFurukawa76k
IIIWarabi70k
IIINiitsu66k
IIIIchikawa458k
IIIFunabashi561k
IIIYamagata-shi255k
IIITamamura43k
IIIKawaguchi469k
IIIHonjo62k
IIIToda119k
IIIShiozawa20k
IIISanjo83k
IIIMurakami31k
IIIMitsuke43k
IIIMaebashi-shi283k
IIIKameda33k
IIITogane66k
IIIChiba-shi920k
IIIShirone41k
IIIShiki65k
IIIKawagoe338k
IIIKamifukuoka52k
IIIRifu35k
IIIYorii39k
IIIUrayasu144k
IIITsubame44k
IIITakasaki241k
IIISakado97k
IIIOi51k
IIINagaoka195k
IIIFujioka63k
IIIAsaka128k
IIIWako77k
IIIOami53k
IIINerima686k
IIIYoshida26k
IIINiigata-shi505k
IIINakanojo18k
IIIMatsushima16k
IIITokorozawa339k
IIIMaki29k
IIISayama161k
IIIIchihara284k
IIITokyo8,337k
IIINishi-Tokyo-shi195k
IIIOmama21k
IIITanashi82k
IIIMusashino137k
IIIMitaka-shi183k
IIIKami-renjaku179k
IIIHigashimurayama-shi151k
IIITomioka49k
IIIKoganei116k
IIIKodaira187k
IIIHigashine46k
IIIShinagawa-ku360k
IIIKokubunji119k
IIIFuchu240k
IIIChofu213k
IIIKomae78k
IIITachikawa174k
IIIKawasaki1,307k
IIIFussa62k
IIIKunitachi78k
IIINumata46k
IIIAkiruno-shi81k
IIITochio23k
IIIOnagawa Cho0
IIIKamo32k
IIIHachioji579k
IIIMuikamachi29k
IIIMachida400k
IIIShibukawa48k
IIISagamihara649k
IIIMinami-rinkan224k
IIIObanazawa21k
IIIZama135k
IIIKaneko37k
IIIUenohara28k
IIIOgawa37k
IIIKodama22k
IIIOjiya41k
IIIYoshii26k
IIIMorohongo40k
IIIHanno86k
IIIAnnaka48k
IIIChichibu59k
IIIOme149k
IIIHino172k
IIIItsukaichi25k
IIIOtsuki31k

(k = x1,000)


PAGER content is automatically generated, and only considers losses due to structural damage. Limitations of input data, shaking estimates, and loss models may add uncertainty. PAGER results are generally available within 30 minutes of the earthquake’s occurrence. However, information on the extent of shaking will be uncertain in the minutes and hours following an earthquake and typically improves as additional sensor data and reported intensities are acquired and incorporated into models of the earthquake's source. Users of PAGER estimates should account for uncertainty and always seek the most current PAGER release for any earthquake.