PAGER - M 4.0 - 62.0 km (38.5 mi) N of Joshua Tree, 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, October 17th, 2011 at 20:05:57 UTC (13:05:57 local)Location: 34.7° N, 116.3° WDepth: 1kmEvent Id: CI15064556Alert Version: 1Created: 1 week, 1 day 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 Exposure2,146k57710000000
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
1984-11-263645.1V (17k)0
1991-06-281655.6VII (8k)1
1994-01-172176.7IX (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
IRialto102k
ITwentynine Palms23k
IFontana169k
IColton52k
IMuscoy10k
IRedlands70k
IRiverside298k
IMoreno Valley169k
IVictorville84k
IHesperia74k

(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
16:33 UTC
6.237.53° N, 118.83° W
11km
USIX (72)00landslide
131980-05-25
19:44 UTC
5.937.38° N, 118.84° W
4km
USVII (2)00landslide
141980-05-25
20:35 UTC
5.937.44° N, 118.96° W
2km
USVI (6 k)00
151980-05-25
20:59 UTC
5.537.59° N, 118.83° W
10km
USVII (660)00
161980-05-26
12:24 UTC
5.637.58° N, 118.9° W
2km
USVII (2 k)00
171980-05-26
18:57 UTC
5.737.56° N, 118.9° W
6km
USVII (2 k)00
181980-05-27
14:50 UTC
5.937.42° N, 118.8° W
1km
USVIII (3)00
191980-06-09
03:28 UTC
6.332.27° N, 114.91° W
5km
MXIX (336)11
201981-04-26
12:09 UTC
5.933.12° N, 115.64° W
1km
USVIII (11)00
211981-09-04
15:50 UTC
5.833.9° N, 119.03° W
15km
USVI (13 k)00
221981-09-30
11:53 UTC
5.637.55° N, 118.8° W
15km
USVII (591)00
231983-05-02
23:46 UTC
5.736.23° N, 120.29° W
8km
USVIII (1 k)00
241984-11-23
18:08 UTC
5.837.34° N, 118.51° W
15km
USVIII (8 k)00
251984-11-23
19:12 UTC
5.537.44° N, 118.64° W
0km
USVII (381)00
261984-11-26
16:21 UTC
5.137.29° N, 118.76° W
10km
USV (17 k)00landslide
271985-08-04
12:01 UTC
6.136.14° N, 120.11° W
15km
USIX (713)00
281986-07-08
09:20 UTC
633.97° N, 116.78° W
12km
USVIII (8 k)00landslide
291986-07-13
13:47 UTC
5.833.05° N, 117.85° W
2km
USV (9,528 k)01landslide
301986-07-20
14:29 UTC
5.837.5° N, 118.45° W
15km
USVIII (9)00
311986-07-21
14:42 UTC
6.237.5° N, 118.44° W
10km
USVIII (375)00
321986-07-21
14:51 UTC
5.737.5° N, 118.37° W
9km
USVIII (270)00
331986-07-21
22:07 UTC
5.437.64° N, 118.49° W
6km
USVII (15)00
341986-07-31
07:22 UTC
5.537.46° N, 118.4° W
15km
USVII (210)00
351987-10-01
14:42 UTC
5.934.06° N, 118.13° W
14km
USVIII (20 k)88
361987-10-04
10:59 UTC
5.234.02° N, 118.14° W
11km
USVII (453 k)01
371987-11-24
01:54 UTC
633.22° N, 115.79° W
15km
USVIII (250)02
381987-11-24
13:15 UTC
6.533.07° N, 115.95° W
2km
USIX (599)00
391988-02-11
15:25 UTC
4.834.08° N, 118.05° W
12km
USVII (11 k)01
401988-12-03
11:38 UTC
534.15° N, 118.13° W
13km
USVI (1,090 k)00
411989-01-19
06:53 UTC
5.233.91° N, 118.7° W
9km
USVI (14 k)00
421990-02-28
23:43 UTC
5.734.14° N, 117.75° W
3km
USVIII (12 k)00
431991-06-28
14:43 UTC
5.634.24° N, 118.01° W
11km
USVII (8 k)11
441992-04-23
04:50 UTC
6.233.87° N, 116.52° W
4km
USVIII (16 k)00
451992-06-28
11:57 UTC
7.334.18° N, 116.53° W
11km
USIX (2 k)11
461992-06-28
15:05 UTC
6.534.29° N, 116.82° W
12km
USIX (2 k)00landslide
471992-06-29
10:14 UTC
5.736.77° N, 116.32° W
11km
USVIII (127)00
481992-06-29
16:01 UTC
5.533.82° N, 116.44° W
15km
USVIII (8 k)00
491992-07-11
18:14 UTC
5.734.96° N, 118.19° W
15km
USVIII (568)00
501992-09-02
10:26 UTC
5.637.03° N, 113.47° W
18km
USVII (9 k)00
511992-11-27
16:00 UTC
5.634.23° N, 117.01° W
5km
USVII (4 k)00
521993-05-17
23:20 UTC
6.137.15° N, 117.82° W
10km
USVIII (6)00
531994-01-17
12:30 UTC
6.734.16° N, 118.58° W
11km
USIX (181 k)3333landslide, liquefaction
541994-01-17
23:33 UTC
5.834.27° N, 118.79° W
8km
USVIII (70 k)00
551994-01-18
00:43 UTC
5.534.26° N, 118.89° W
17km
USVII (97 k)00
561995-09-20
23:27 UTC
5.535.63° N, 117.73° W
15km
USVIII (852)00
571999-05-15
13:22 UTC
5.537.45° N, 118.8° W
1km
USVII (4)00
581999-10-16
09:46 UTC
7.134.52° N, 116.44° W
5km
USIX (17 k)00
591999-10-16
09:59 UTC
5.834.56° N, 116.79° W
9km
USVIII (19)00
601999-10-16
12:57 UTC
5.734.27° N, 116.23° W
12km
USVIII (201)00
612001-12-08
23:36 UTC
5.732.05° N, 114.9° W
9km
MXVIII (72)00
622002-02-22
19:32 UTC
5.532.38° N, 115.19° W
9km
MXVIII (8 k)00
632004-09-28
17:15 UTC
635.75° N, 120.32° W
5km
USVII (160)00
642005-06-16
20:53 UTC
4.933.95° N, 117.05° W
18km
USVI (63 k)00
MMICityPopulation
ISan Bernardino202k
IRialto102k
ITwentynine Palms23k
IColton52k
IFontana169k
IMuscoy10k
IBloomington22k
IHighland51k
ILoma Linda21k
IGrand Terrace13k
IHighgrove4k
IRedlands70k
IAdelanto18k
IApple Valley64k
IBanning30k
IBarstow21k
IBarstow Heights24k
IBeaumont19k
IBig Bear City6k
IBig Bear Lake6k
ICabazon3k
ICalimesa8k
ICherry Valley6k
ICrestline11k
IDesert Hot Springs19k
IGlen Avon16k
IHesperia74k
IHome Gardens11k
IJoshua Tree4k
ILake Arrowhead11k
ILenwood3k
IMentone9k
IMira Loma19k
IMoreno Valley169k
IMorongo Valley2k
IMountain View Acres3k
IPedley13k
IRiverside298k
IRubidoux32k
IRunning Springs6k
ISunnyslope5k
IVictorville84k
IWoodcrest9k
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.