PAGER - M 7.2 - 30.8 mi SSE of Calexico, CA

Alert Level: RED

Download Alert PDFWhat's this?Sunday, April 4th, 2010 at 22:40:42 UTC (15:40:42 local)Location: 32.3° N, 115.3° WDepth: 10kmEvent Id: CI14607652Alert Version: 1Created: 24 weeks, 4 days after earthquake.
Global Location

Alert Information

Estimated FatalitiesFatality Alert Level: RED
ESTIMATED FATALITY ALERT: RED
ESTIMATED FATALITIES (LEVEL)Probability (%)
0 (GREEN)0
1 to 9 (YELLOW)1
10 to 99 (YELLOW)
 
10
100 to 999 (ORANGE)
 
30
1 to 10 thousand (RED)
 
37
10 to 100 thousand (RED)
 
19
100 thousand + (RED)
 
4
Estimated Economic LossesEconomic Alert Level: RED
ESTIMATED ECONOMIC ALERT: RED
ESTIMATED VALUE IN USD (LEVEL)Probability (%)
0 to 1 million (GREEN)0
1 to 10 million (YELLOW)0
10 to 100 million (YELLOW)
 
3
100 million to 1 billion (ORANGE)
 
14
1 to 10 billion (RED)
 
32
10 to 100 billion (RED)
 
32
100 billion + (RED)
 
15
Red alert for shaking-related fatalities and economic losses. High casualties and extensive damage are probable and the disaster is likely widespread. Past red alerts have required a national or international response. Estimated economic losses are 0-2% GDP of Mexico.

Detailed Information

Estimated Population Exposed to Earthquake Shaking
Estimated Modified Mercalli IntensityIII-IIIIVVVIVIIVIIIIXX
Est. Population Exposure---*---*220k*2,824k*341k*144k753k48k38
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 a mix of vulnerable and earthquake resistant construction. The predominant vulnerable building types are adobe block with concrete bond beam and mud wall construction.

Historical Earthquakes (with MMI)

DateDist (km)MagMax MMI (#)Shaking Deaths
1975-07-083676.5IX (20)0
1980-06-09356.3IX (336)1
2002-02-22165.5VIII (8k)0

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

Selected Cities Exposedfrom GeoNames Database of Cities with 1,000 or more residents.
MMICityPopulation
VIIIAlberto Oviedo Mota8k
VIIIDelta6k
VIIIProgreso5k
VIIMexicali597k
VIIEl Centro38k
VIICalexico36k
VISan Luis Rio Colorado139k
IVTijuana1,376k
IVEnsenada257k
IVChula Vista213k
IVEscondido137k

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11975-07-08
09:37 UTC
6.529.36° N, 113.45° W
2km
MXIX (20)00
21978-05-05
21:03 UTC
5.532.22° N, 115.32° W
5km
MXVIII (97)00
31979-03-15
21:07 UTC
5.534.2° N, 116.53° W
15km
USVII (744)00
41979-10-15
23:17 UTC
6.532.82° N, 115.64° W
9km
USIX (3 k)00
51979-10-16
05:49 UTC
5.633.02° N, 115.57° W
5km
USVIII (611)00
61979-10-16
06:19 UTC
5.132.73° N, 115.76° W
10km
USVII (77)00
71979-10-16
06:58 UTC
5.632.95° N, 115.62° W
10km
USVIII (287)00
81979-10-16
23:16 UTC
5.532.92° N, 115.55° W
4km
USVIII (40)00
91980-02-25
10:47 UTC
5.633.52° N, 116.55° W
6km
USVII (847)00
101980-06-09
03:28 UTC
6.332.27° N, 114.91° W
5km
MXIX (336)11
111981-04-26
12:09 UTC
5.933.12° N, 115.64° W
1km
USVIII (11)00
121981-09-04
15:50 UTC
5.833.9° N, 119.03° W
15km
USVI (13 k)00
131986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
141986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
151987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
161987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
171987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
181987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
191988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
201988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
211989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
221990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
231991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
241992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
251992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
261992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
271992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
281992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
291994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
301994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
311999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
321999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
331999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
342001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
352002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
362005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
VIIIAlberto Oviedo Mota8k
VIIIProgreso5k
VIIIDelta6k
VIIGuadalupe Victoria18k
VIIHeber3k
VIICalexico36k
VIIMexicali597k
VIIEstacion Coahuila8k
VIIEl Centro38k
VIIPuebla9k
VIISeeley2k
VIIImperial10k
VIHoltville5k
VITecolots5k
VIHermosillo6k
VIBrawley22k
VIWestmorland2k
VISan Luis Rio Colorado139k
VISan Luis22k
VIGadsden1k
VSomerton9k
VCalipatria8k
VLos Algodones5k
VNiland1k
VSalton City1k
VWellton2k
VYuma84k
VManeadero18k
VPine Valley2k
IVTijuana1,376k
IVTecate58k
IVFortuna Foothills31k
IVRamona17k
IVChula Vista213k
IVBonita13k
IVLakeside19k
IVSan Diego Country Estates11k
IVEnsenada257k
IVEl Sauzal9k
IVPrimo Tapia5k
IVNational City62k
IVEscondido137k
IVRosarito66k
IVBostonia16k
IVPoway48k
IVLa Presa35k
IVAlpine15k
IVJamul8k
IVBorrego Springs3k
IVEl Cajon95k
IVHarbison Canyon5k
IVValley Center10k
IVCrest3k
IVLa Mesa54k
IVGranite Hills3k
IVSantee53k
IVWinter Gardens21k
IVLemon Grove25k
IVJulian2k
IVRancho San Diego28k
IVSpring Valley26k

(k = x1,000)


PAGER results are generally available on the Internet 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.

Bookmark and Share