PAGER - M 3.5 - 17.4 km (10.8 mi) ENE of Big Bear City, 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?Friday, September 9th, 2011 at 19:45:26 UTC (12:45:26 local)Location: 34.3° N, 116.7° WDepth: 5kmEvent Id: CI11004485Alert Version: 1Created: 12 minutes, 44 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 Exposure6,407k00000000
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
1991-06-281245.6VII (8k)1
1994-01-171766.7IX (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
ISanta Ana343k
IAnaheim328k
IRiverside298k
ISan Bernardino202k
IIrvine189k
IOntario173k
IFontana169k
IMoreno Valley169k
IRancho Cucamonga169k
IPomona156k
ICorona153k

(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
171983-05-02
23:42 UTC
6.336.22° N, 120.3° W
10km
USIX (29)00
181983-05-02
23:46 UTC
5.736.23° N, 120.29° W
8km
USVIII (1 k)00
191983-07-09
07:40 UTC
5.136.17° N, 120.37° W
1km
USVII (10 k)00
201983-07-22
02:39 UTC
5.736.2° N, 120.34° W
7km
USVII (1 k)00
211984-11-23
18:08 UTC
5.837.34° N, 118.51° W
15km
USVIII (8 k)00
221984-11-23
19:12 UTC
5.537.44° N, 118.64° W
0km
USVII (381)00
231984-11-26
16:21 UTC
5.137.29° N, 118.76° W
10km
USV (17 k)00landslide
241985-08-04
12:01 UTC
6.136.14° N, 120.11° W
15km
USIX (713)00
251986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
261986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
271986-07-20
14:29 UTC
5.837.5° N, 118.45° W
15km
USVIII (9)00
281986-07-21
14:42 UTC
6.237.5° N, 118.44° W
10km
USVIII (375)00
291986-07-21
14:51 UTC
5.737.5° N, 118.37° W
9km
USVIII (270)00
301986-07-31
07:22 UTC
5.537.46° N, 118.4° W
15km
USVII (210)00
311987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
321987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
331987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
341987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
351988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
361988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
371989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
381990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
391991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
401992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
411992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
421992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
431992-06-29
10:14 UTC
5.736.77° N, 116.32° W
11km
USVIII (127)00
441992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
451992-07-11
18:14 UTC
5.734.96° N, 118.19° W
15km
USVIII (568)00
461992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
471993-05-17
23:20 UTC
6.137.15° N, 117.82° W
10km
USVIII (6)00
481994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
491994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
501994-01-18
00:43 UTC
5.534.26° N, 118.89° W
17km
USVII (97 k)00
511995-09-20
23:27 UTC
5.535.63° N, 117.73° W
15km
USVIII (852)00
521999-05-15
13:22 UTC
5.537.45° N, 118.8° W
1km
USVII (4)00
531999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
541999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
551999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
562001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
572002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
582004-09-28
17:15 UTC
635.75° N, 120.32° W
5km
USVII (160)00
592005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
IAdelanto18k
IAliso Viejo41k
IAnaheim328k
IApple Valley64k
IAzusa48k
IBanning30k
IBarstow21k
IBarstow Heights24k
IBeaumont19k
IBermuda Dunes7k
IBig Bear City6k
IBig Bear Lake6k
IBloomington22k
IBoron2k
IBrea40k
ICabazon3k
ICalimesa8k
ICanyon Lake12k
ICathedral City53k
ICharter Oak9k
ICherry Valley6k
IChino75k
IChino Hills67k
ICitrus11k
IClaremont35k
ICoachella31k
IColton52k
ICorona153k
ICoto De Caza19k
ICovina49k
ICrestline11k
IDana Point36k
IDesert Hot Springs19k
IDiamond Bar59k
IEast Hemet14k
IEl Cerrito5k
IFontana169k
IFoothill Ranch12k
IGlen Avon16k
IGlendora52k
IGrand Terrace13k
IHemet69k
IHesperia74k
IHighgrove4k
IHighland51k
IHome Gardens11k
IHomeland4k
IIndian Wells4k
IIndio66k
IIrvine189k
IJoshua Tree4k
ILa Quinta38k
ILa Verne34k
ILaguna Beach24k
ILaguna Hills31k
ILaguna Niguel66k
ILaguna Woods20k
ILake Arrowhead11k
ILake Elsinore41k
ILake Forest77k
ILake Los Angeles14k
ILakeland Village6k
ILakeview2k
ILas Flores6k
ILenwood3k
ILoma Linda21k
ILos Serranos7k
IMecca7k
IMentone9k
IMira Loma19k
IMission Viejo96k
IMontclair36k
IMoreno Valley169k
IMorongo Valley2k
IMountain View Acres3k
IMurrieta89k
IMurrieta Hot Springs4k
IMuscoy10k
INorco27k
INorth Edwards1k
INuevo5k
IOntario173k
IOrange129k
IPalm Desert49k
IPalm Springs43k
IPedley13k
IPerris46k
IPlacentia49k
IPomona156k
IPortola Hills9k
IQuail Valley2k
IRancho Cucamonga169k
IRancho Mirage17k
IRancho Santa Margarita51k
IRedlands70k
IRialto102k
IRiverside298k
IRomoland3k
IRowland Heights52k
IRubidoux32k
IRunning Springs6k
ISan Antonio Heights3k
ISan Bernardino202k
ISan Dimas36k
ISan Jacinto29k
ISan Joaquin Hills3k
ISan Juan Capistrano35k
ISanta Ana343k
ISedco Hills3k
ISouth San Jose Hills22k
ISun City20k
ISunnyslope5k
ITemecula85k
IThousand Palms6k
ITrabuco Canyon3k
ITustin69k
INorth Tustin24k
ITwentynine Palms23k
IUpland74k
IValle Vista12k
IVictorville84k
IVilla Park6k
IWalnut32k
IWildomar16k
IWinchester2k
IWoodcrest9k
IWrightwood4k
IYorba Linda65k
IYucaipa50k
IYucca Valley19k

(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.