PAGER - M 3.9 - 2.8 km (1.7 mi) SSW of Laguna Niguel, 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, April 23rd, 2012 at 17:37:02 UTC (10:37:02 local)Location: 33.5° N, 117.7° WDepth: 13kmEvent Id: CI15139337Alert Version: 6Created: 1 day, 1 hour 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 Exposure3,250k*15,735k164k000000
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
1986-07-13525.8V (10m)0
2003-12-223866.6VII (213)2
1994-01-171076.7IX (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
IVLaguna Niguel66k
IVDana Point36k
IVSan Juan Capistrano35k
IIILaguna Beach24k
IIILaguna Hills31k
IIILaguna Woods20k
IIISanta Ana343k
IIAnaheim328k
IILong Beach483k
IILos Angeles3,695k
ISan Diego1,223k

(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
141983-05-02
23:42 UTC
6.336.22° N, 120.3° W
10km
USIX (29)00
151983-05-02
23:46 UTC
5.736.23° N, 120.29° W
8km
USVIII (1 k)00
161983-07-09
07:40 UTC
5.136.17° N, 120.37° W
1km
USVII (10 k)00
171983-07-22
02:39 UTC
5.736.2° N, 120.34° W
7km
USVII (1 k)00
181985-08-04
12:01 UTC
6.136.14° N, 120.11° W
15km
USIX (713)00
191986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
201986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
211987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
221987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
231987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
241987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
251988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
261988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
271989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
281990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
291991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
301992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
311992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
321992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
331992-06-29
10:14 UTC
5.736.77° N, 116.32° W
11km
USVIII (127)00
341992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
351992-07-11
18:14 UTC
5.734.96° N, 118.19° W
15km
USVIII (568)00
361992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
371994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
381994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
391994-01-18
00:43 UTC
5.534.26° N, 118.89° W
17km
USVII (97 k)00
401995-09-20
23:27 UTC
5.535.63° N, 117.73° W
15km
USVIII (852)00
411999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
421999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
431999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
442001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
452002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
462003-12-22
19:15 UTC
6.635.62° N, 121.07° W
16km
USVII (213)22landslide, liquefaction
472004-09-28
17:15 UTC
635.75° N, 120.32° W
5km
USVII (160)00
482005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
IVLaguna Niguel66k
IVDana Point36k
IVSan Juan Capistrano35k
IIILaguna Beach24k
IIILaguna Hills31k
IIILaguna Woods20k
IIIMission Viejo96k
IIISan Clemente62k
IIIAliso Viejo41k
IIILake Forest77k
IIILas Flores6k
IIISan Joaquin Hills3k
IIIIrvine189k
IIIFoothill Ranch12k
IIIPortola Hills9k
IIIFountain Valley56k
IIINewport Beach79k
IIIRancho Santa Margarita51k
IIICosta Mesa109k
IIISanta Ana343k
IIITustin69k
IIICoto De Caza19k
IIITrabuco Canyon3k
IIIGarden Grove167k
IIIOrange129k
IIIWestminster90k
IIINorth Tustin24k
IIIHuntington Beach196k
IIIEl Cerrito5k
IIIVilla Park6k
IICorona153k
IIStanton38k
IIPlacentia49k
IIAnaheim328k
IILakeland Village6k
IICypress47k
IILos Alamitos12k
IIMurrieta89k
IIRossmoor11k
IIChino Hills67k
IIYorba Linda65k
IIFullerton135k
IIHawaiian Gardens16k
IIBuena Park79k
IICanyon Lake12k
IISedco Hills3k
IIHome Gardens11k
IILa Palma16k
IINorco27k
IIMurrieta Hot Springs4k
IICerritos53k
IILa Puente43k
IISeal Beach24k
IIWildomar16k
IIAvocado Heights16k
IIEast La Mirada10k
IILa Habra60k
IIMira Loma19k
IIBrea40k
IIOceanside161k
IISun City20k
IIWest Puente Valley24k
IIRowland Heights52k
IISouth Whittier59k
IIHacienda Heights54k
IILa Habra Heights6k
IIMoreno Valley169k
IIPerris46k
IIArtesia17k
IILakewood82k
IIWhittier86k
IIEl Monte125k
IILa Mirada50k
IISignal Hill11k
IILos Serranos7k
IIRiverside298k
IIRomoland3k
IISouth El Monte22k
IIWinchester2k
IINorth El Monte4k
IIRosemead56k
IIChino75k
IITemple City38k
IIArcadia57k
IIBaldwin Park81k
IINuevo5k
IIRancho Cucamonga169k
IIValinda24k
IIEast San Gabriel16k
IIGlen Avon16k
IIMayflower Village5k
IISanta Fe Springs16k
IICarlsbad78k
IIFallbrook34k
IILoma Linda21k
IILong Beach483k
IIMontebello64k
IIPico Rivera66k
IISouth San Gabriel8k
IIRainbow2k
IITemecula85k
IIBellflower76k
IIHighgrove4k
IILakeview2k
IIMonterey Park63k
IINorwalk109k
IISan Bernardino202k
IISouth San Jose Hills22k
IIWest Covina110k
IILake Elsinore41k
IIRubidoux32k
IIGrand Terrace13k
IIHemet69k
IIMuscoy10k
IIParamount57k
IISunnyslope5k
IIEast Hemet14k
IIOntario173k
IIWalnut32k
IIWoodcrest9k
IISan Jacinto29k
IIHighland51k
IIColton52k
IIEast Pasadena6k
IIMentone9k
IISan Antonio Heights3k
IIBloomington22k
IIDowney112k
IIMonrovia38k
IICarson96k
IICovina49k
IITorrance145k
IIQuail Valley2k
IIRedlands70k
IISan Gabriel42k
IIFontana169k
IISan Marino13k
IIAlhambra88k
IIEncinitas58k
IIRialto102k
IIPedley13k
IIWest Carson22k
IIBradbury1k
IIRedondo Beach68k
IIUpland74k
IICompton97k
IIDuarte23k
IIIrwindale2k
IIBonsall5k
IISouth Pasadena25k
IIEast Compton10k
IISolana Beach13k
IIWest Compton6k
IICommerce14k
IIHermosa Beach20k
IIPalos Verdes Estates14k
IISierra Madre11k
IIPomona156k
IIValle Vista12k
IIWillowbrook35k
IIAlondra Park8k
IIBell Gardens46k
IIGardena61k
IILomita21k
IIPasadena145k
IIYucaipa50k
IIEast Los Angeles125k
IILawndale33k
IIManhattan Beach37k
IIEscondido137k
IICitrus11k
IIAvalon3k
IIBell38k
IICharter Oak9k
IICudahy26k
IIMaywood29k
IIMontclair36k
IIDiamond Bar59k
IIRolling Hills Estates8k
IIEl Segundo17k
IIHuntington Park64k
IILa Verne34k
IIRancho Santa Fe3k
IILynwood72k
IIAzusa48k
IIHawthorne87k
IILos Angeles3,695k
IIMarina del Rey9k
IIPoway48k
IIWest Athens9k
IIClaremont35k
IIDel Aire10k
IIRolling Hills2k
IIWalnut Park17k
IIAltadena43k
IIBelvedere2k
IIHomeland4k
IISouth Gate100k
IICabazon3k
IILennox23k
IIWestmont32k
IIRancho Palos Verdes43k
IICulver City40k
IIRamona17k
IISanta Monica88k
IISan Fernando25k
IIInglewood116k
IIWestwood2k
IIBanning30k
IICrestline11k
IIGlendora52k
IIBeverly Hills35k
IICalabasas21k
IIEl Cajon95k
IILadera Heights7k
IIVista93k
IIHollywood168k
IISan Dimas36k
IIWest Hollywood37k
IIBostonia16k
IIHidden Meadows4k
IILakeside19k
IIValley Center10k
IILa Canada Flintridge21k
ICoronado24k
IGlendale195k
ILake Arrowhead11k
IMorongo Valley2k
INorth Glendale203k
IHidden Hills2k
IDel Mar4k
IMalibu Beach14k
IAgoura21k
IBurbank105k
ICalimesa8k
ILake San Marcos4k
IRunning Springs6k
IDesert Hot Springs19k
ILa Presa35k
IPalm Springs43k
ISan Marcos70k
IBig Bear City6k
IOak Park2k
IWestlake Village9k
ILemon Grove25k
IBeaumont19k
ICasa Conejo3k
IMoorpark37k
ISan Diego1,223k
ISimi Valley119k
IThousand Oaks128k
ICherry Valley6k
INational City62k
IAgoura Hills22k
ILa Mesa54k
ISantee53k
ISan Diego Country Estates11k
ILas Flores6k
IWinter Gardens21k
IMalibu13k
IRancho San Diego28k
ISpring Valley26k
IGranite Hills3k
ICrest3k
IHarbison Canyon5k
IJamul8k
IJulian2k
IAlpine15k
IBig Bear Lake6k
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.