PAGER - M 3.5 - 9.0 km (5.6 mi) NNW of Borrego Springs, CA

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?Sunday, April 22nd, 2012 at 16:18:33 UTC (09:18:33 local)Location: 33.3° N, 116.4° WDepth: 4kmEvent Id: CI15138681Alert Version: 4Created: 1 day, 0 hours 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)
 
99
1 to 9 (YELLOW)1
10 to 99 (YELLOW)0
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)
 
99
1 to 10 million (YELLOW)1
10 to 100 million (YELLOW)0
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 Exposure8,103k*111k0000000
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 highly resistant to earthquake shaking, though some vulnerable structures exist.

Historical Earthquakes (with MMI)

Date (UTC)Dist (km)MagMax MMI (#)Shaking Deaths
1986-07-131365.8V (10m)0
1991-06-281785.6VII (8k)1
1994-01-172196.7IX (181k)33

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
IIIBorrego Springs3k
IISalton City1k
IIMecca7k
IIRamona17k
IIPoway48k
IILa Quinta38k
ITijuana1,376k
IMexicali597k
ISan Diego1,223k
IRiverside298k
IChula Vista213k

(k = x1,000)

Historical Events Map
Nearby Events in the EXPO-CAT Earthquake Catalog
#Date/TimeMagLat, Lon, DepthCountryMax MMI (Exposed)DeathsSecondary Effects
ShakingTotal
11973-02-21
14:45 UTC
5.934.06° N, 119.05° W
6km
USVIII (4 k)00
21978-05-05
21:03 UTC
5.532.22° N, 115.32° W
5km
MXVIII (97)00
31978-08-13
22:54 UTC
5.834.39° N, 119.64° W
8km
USVIII (40 k)00
41979-03-15
21:07 UTC
5.534.2° N, 116.53° W
15km
USVII (744)00
51979-10-15
23:17 UTC
6.532.82° N, 115.64° W
9km
USIX (3 k)00
61979-10-16
05:49 UTC
5.633.02° N, 115.57° W
5km
USVIII (611)00
71979-10-16
06:19 UTC
5.132.73° N, 115.76° W
10km
USVII (77)00
81979-10-16
06:58 UTC
5.632.95° N, 115.62° W
10km
USVIII (287)00
91979-10-16
23:16 UTC
5.532.92° N, 115.55° W
4km
USVIII (40)00
101980-02-25
10:47 UTC
5.633.52° N, 116.55° W
6km
USVII (847)00
111980-06-09
03:28 UTC
6.332.27° N, 114.91° W
5km
MXIX (336)11
121981-04-26
12:09 UTC
5.933.12° N, 115.64° W
1km
USVIII (11)00
131981-09-04
15:50 UTC
5.833.9° N, 119.03° W
15km
USVI (13 k)00
141986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
151986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
161987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
171987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
181987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
191987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
201988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
211988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
221989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
231990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
241991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
251992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
261992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
271992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
281992-06-29
10:14 UTC
5.736.77° N, 116.32° W
11km
USVIII (127)00
291992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
301992-07-11
18:14 UTC
5.734.96° N, 118.19° W
15km
USVIII (568)00
311992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
321994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
331994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
341994-01-18
00:43 UTC
5.534.26° N, 118.89° W
17km
USVII (97 k)00
351995-09-20
23:27 UTC
5.535.63° N, 117.73° W
15km
USVIII (852)00
361999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
371999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
381999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
392001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
402002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
412005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
IIIBorrego Springs3k
IISalton City1k
IIMecca7k
IIRamona17k
IIPoway48k
IILa Quinta38k
IIJulian2k
IPalm Desert49k
IBermuda Dunes7k
IIndian Wells4k
IIndio66k
ICoachella31k
IRancho Mirage17k
IMoreno Valley169k
ICoronado24k
IRubidoux32k
ISedco Hills3k
ICabazon3k
ILoma Linda21k
IMurrieta89k
ISun City20k
IValle Vista12k
IHemet69k
ISan Jacinto29k
IBanning30k
IEast Hemet14k
ISantee53k
IBeaumont19k
IWinchester2k
IProgreso5k
ITijuana1,376k
IMexicali597k
IPuebla9k
IBostonia16k
IBrawley22k
ICalexico36k
ICalipatria8k
ICarlsbad78k
IDesert Hot Springs19k
IEl Cajon95k
IEl Centro38k
IGranite Hills3k
IHeber3k
IHoltville5k
IHome Gardens11k
IImperial10k
IImperial Beach27k
ILakeview2k
IMentone9k
IMuscoy10k
INiland1k
INuevo5k
IOceanside161k
IPalm Springs43k
IPedley13k
IPerris46k
IRancho Cucamonga169k
IRomoland3k
ISan Bernardino202k
ISeeley2k
IThousand Palms6k
ITrabuco Canyon3k
ITwentynine Palms23k
IWestmorland2k
IRiverside298k
ISan Diego1,223k
IGrand Terrace13k
IHighgrove4k
IMurrieta Hot Springs4k
IColton52k
ILemon Grove25k
IBloomington22k
INational City62k
IBonita13k
IChula Vista213k
ICorona153k
IEl Cerrito5k
IFontana169k
IFoothill Ranch12k
IGlen Avon16k
IHighland51k
IJoshua Tree4k
ILa Presa35k
ILas Flores6k
IMira Loma19k
IMission Viejo96k
INorco27k
IOntario173k
IPortola Hills9k
IRancho Santa Margarita51k
IRedlands70k
ISan Antonio Heights3k
ISan Clemente62k
ISunnyslope5k
IUpland74k
IYucaipa50k
IYucca Valley19k
IWildomar16k
ILa Mesa54k
ICalimesa8k
ICherry Valley6k
ICoto De Caza19k
IRancho Santa Fe3k
IRialto102k
ISan Diego Country Estates11k
ICathedral City53k
IWoodcrest9k
IEncinitas58k
ISan Juan Capistrano35k
IMorongo Valley2k
ITecate58k
IAlpine15k
IBonsall5k
ICanyon Lake12k
ICrest3k
IDel Mar4k
IEscondido137k
IFallbrook34k
IHarbison Canyon5k
IHidden Meadows4k
IHomeland4k
IJamul8k
ILake San Marcos4k
ILakeside19k
IQuail Valley2k
IRainbow2k
IRancho San Diego28k
ISan Marcos70k
ISolana Beach13k
ISpring Valley26k
IValley Center10k
IVista93k
IWinter Gardens21k
ITemecula85k
ILake Elsinore41k
ILakeland Village6k
IPine Valley2k

(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.