PAGER - M 3.5 - 31.1 km (19.3 mi) N of Yucca Valley, 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?Monday, May 21st, 2012 at 06:19:11 UTC (23:19:11 local)Location: 34.4° N, 116.5° WDepth: 9kmEvent Id: CI15152601Alert Version: 2Created: 7 minutes, 54 seconds 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 Exposure4,001k*1k0000000
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
1984-11-263825.1V (17k)0
1991-06-281435.6VII (8k)1
1994-01-171966.7IX (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
ISan Bernardino202k
IMoreno Valley169k
IRancho Cucamonga169k
IVictorville84k
IChino75k
IHemet69k
IRiverside298k
IOntario173k
IFontana169k
ICorona153k
IRialto102k

(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
41978-10-04
16:42 UTC
5.437.39° N, 118.69° W
8km
USVI (598)00
51979-03-15
21:07 UTC
5.534.2° N, 116.53° W
15km
USVII (744)00
61979-10-15
23:17 UTC
6.532.82° N, 115.64° W
9km
USIX (3 k)00
71979-10-16
05:49 UTC
5.633.02° N, 115.57° W
5km
USVIII (611)00
81979-10-16
06:19 UTC
5.132.73° N, 115.76° W
10km
USVII (77)00
91979-10-16
06:58 UTC
5.632.95° N, 115.62° W
10km
USVIII (287)00
101979-10-16
23:16 UTC
5.532.92° N, 115.55° W
4km
USVIII (40)00
111980-02-25
10:47 UTC
5.633.52° N, 116.55° W
6km
USVII (847)00
121980-05-25
19:44 UTC
5.937.38° N, 118.84° W
4km
USVII (2)00landslide
131980-05-27
14:50 UTC
5.937.42° N, 118.8° W
1km
USVIII (3)00
141980-06-09
03:28 UTC
6.332.27° N, 114.91° W
5km
MXIX (336)11
151981-04-26
12:09 UTC
5.933.12° N, 115.64° W
1km
USVIII (11)00
161981-09-04
15:50 UTC
5.833.9° N, 119.03° W
15km
USVI (13 k)00
171984-11-23
18:08 UTC
5.837.34° N, 118.51° W
15km
USVIII (8 k)00
181984-11-23
19:12 UTC
5.537.44° N, 118.64° W
0km
USVII (381)00
191984-11-26
16:21 UTC
5.137.29° N, 118.76° W
10km
USV (17 k)00landslide
201985-08-04
12:01 UTC
6.136.14° N, 120.11° W
15km
USIX (713)00
211986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
221986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
231986-07-20
14:29 UTC
5.837.5° N, 118.45° W
15km
USVIII (9)00
241986-07-21
14:42 UTC
6.237.5° N, 118.44° W
10km
USVIII (375)00
251986-07-21
14:51 UTC
5.737.5° N, 118.37° W
9km
USVIII (270)00
261986-07-31
07:22 UTC
5.537.46° N, 118.4° W
15km
USVII (210)00
271987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
281987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
291987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
301987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
311988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
321988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
331989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
341990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
351991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
361992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
371992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
381992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
391992-06-29
10:14 UTC
5.736.77° N, 116.32° W
11km
USVIII (127)00
401992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
411992-07-11
18:14 UTC
5.734.96° N, 118.19° W
15km
USVIII (568)00
421992-09-02
10:26 UTC
5.637.03° N, 113.47° W
18km
USVII (9 k)00
431992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
441993-05-17
23:20 UTC
6.137.15° N, 117.82° W
10km
USVIII (6)00
451994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
461994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
471994-01-18
00:43 UTC
5.534.26° N, 118.89° W
17km
USVII (97 k)00
481995-09-20
23:27 UTC
5.535.63° N, 117.73° W
15km
USVIII (852)00
491999-05-15
13:22 UTC
5.537.45° N, 118.8° W
1km
USVII (4)00
501999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
511999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
521999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
532001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
542002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
552004-09-28
17:15 UTC
635.75° N, 120.32° W
5km
USVII (160)00
562005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
IAdelanto18k
IApple Valley64k
IBanning30k
IBarstow Heights24k
IBermuda Dunes7k
IBig Bear City6k
IBig Bear Lake6k
IBoron2k
ICabazon3k
ICathedral City53k
IChino75k
ICoachella31k
IDesert Hot Springs19k
IEast Hemet14k
IHemet69k
IHomeland4k
IIndian Wells4k
IIndio66k
ILa Quinta38k
ILakeview2k
ILenwood3k
ILoma Linda21k
ILos Serranos7k
IMecca7k
IMentone9k
IMoreno Valley169k
IMountain View Acres3k
IMuscoy10k
INuevo5k
IPalm Desert49k
IPalm Springs43k
IPerris46k
IRancho Cucamonga169k
IRancho Mirage17k
IRancho Santa Margarita51k
IRomoland3k
IRubidoux32k
ISan Bernardino202k
ISan Jacinto29k
ISedco Hills3k
ISun City20k
IThousand Palms6k
ITwentynine Palms23k
IValle Vista12k
IVictorville84k
IYucca Valley19k
IBarstow21k
IBloomington22k
IColton52k
ICorona153k
IFontana169k
IFoothill Ranch12k
IGlen Avon16k
IGrand Terrace13k
IHesperia74k
IHighgrove4k
IHighland51k
IHome Gardens11k
IJoshua Tree4k
ILaguna Hills31k
ILake Forest77k
ILas Flores6k
IMira Loma19k
IMission Viejo96k
IMontclair36k
IMorongo Valley2k
INorco27k
IOntario173k
IPedley13k
IPortola Hills9k
IRedlands70k
IRialto102k
IRiverside298k
ISan Antonio Heights3k
ISunnyslope5k
IUpland74k
IYucaipa50k
IBeaumont19k
ICalimesa8k
ICherry Valley6k
ITrabuco Canyon3k
IWildomar16k
ICoto De Caza19k
IEl Cerrito5k
IWoodcrest9k
ICanyon Lake12k
ICrestline11k
ILake Arrowhead11k
ILake Elsinore41k
ILakeland Village6k
IQuail Valley2k
IRunning Springs6k
IWinchester2k
IWrightwood4k

(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.