PAGER - M 4.3 - 21.4 km (13.3 mi) SSW of Ocotillo, 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 PDF What's this?Sunday, August 26th, 2012 at 21:15:05 UTC (14:15:05 local)Location: 32.6° N, 116.1° WDepth: 7kmEvent Id: CI15200497Alert Version: 3Created: 2 hours, 34 minutes after earthquake.

Alert Information

Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.

Estimated Fatalities

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 Losses

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 Intensity		I	II-III	IV	V	VI	VII	VIII	IX	X
Est. Population Exposure		5,657k*	153k*	0	0	0	0	0	0	0
Perceived Shaking		Not Felt	Weak	Light	Moderate	Strong	Very Strong	Severe	Violent	Extreme
Potential Structure Damage	Resistant	none	none	none	V. Light	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy
Potential Structure Damage	Vulnerable	none	none	none	Light	Moderate	Moderate/Heavy	Heavy	V. Heavy	V. Heavy

*Estimated exposure only includes population within calculated shake map area

Population Exposure
Population per ~1 sq. km. from LandScan

Structure Information Summary

Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction.

Historical Earthquakes (with MMI)

Date (UTC)	Dist (km)	Mag	Max MMI (#)	Shaking Deaths
2001-12-08	122	5.7	VIII (72)	0
2002-02-22	83	5.5	VIII (8k)	0
1980-06-09	112	6.3	IX (336)	1

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.

MMI	City	Population
II	Calipatria	8k
II	El Centro	38k
II	Imperial	10k
II	Holtville	5k
II	Salton City	1k
II	Niland	1k
I	Tijuana	1,376k
I	San Diego	1,223k
I	Mexicali	597k
I	Ensenada	257k
I	Chula Vista	213k

(k = x1,000)

Nearby Events in the EXPO-CAT Earthquake Catalog
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Deaths		Secondary Effects
#	Date/Time	Mag	Lat, Lon, Depth	Country	Max MMI (Exposed)	Shaking	Total	Secondary Effects
1	1973-02-21 14:45 UTC	5.9	34.06° N, 119.05° W 6km	US	VIII (4 k)	0	0
2	1978-05-05 21:03 UTC	5.5	32.22° N, 115.32° W 5km	MX	VIII (97)	0	0
3	1978-08-13 22:54 UTC	5.8	34.39° N, 119.64° W 8km	US	VIII (40 k)	0	0
4	1979-03-15 21:07 UTC	5.5	34.2° N, 116.53° W 15km	US	VII (744)	0	0
5	1979-10-15 23:17 UTC	6.5	32.82° N, 115.64° W 9km	US	IX (3 k)	0	0
6	1979-10-16 05:49 UTC	5.6	33.02° N, 115.57° W 5km	US	VIII (611)	0	0
7	1979-10-16 06:19 UTC	5.1	32.73° N, 115.76° W 10km	US	VII (77)	0	0
8	1979-10-16 06:58 UTC	5.6	32.95° N, 115.62° W 10km	US	VIII (287)	0	0
9	1979-10-16 23:16 UTC	5.5	32.92° N, 115.55° W 4km	US	VIII (40)	0	0
10	1980-02-25 10:47 UTC	5.6	33.52° N, 116.55° W 6km	US	VII (847)	0	0
11	1980-06-09 03:28 UTC	6.3	32.27° N, 114.91° W 5km	MX	IX (336)	1	1
12	1981-04-26 12:09 UTC	5.9	33.12° N, 115.64° W 1km	US	VIII (11)	0	0
13	1981-09-04 15:50 UTC	5.8	33.9° N, 119.03° W 15km	US	VI (13 k)	0	0
14	1986-07-08 09:20 UTC	6	33.97° N, 116.78° W 12km	US	VIII (8 k)	0	0	landslide
15	1986-07-13 13:47 UTC	5.8	33.05° N, 117.85° W 2km	US	V (9,528 k)	0	1	landslide
16	1987-10-01 14:42 UTC	5.9	34.06° N, 118.13° W 14km	US	VIII (20 k)	8	8
17	1987-10-04 10:59 UTC	5.2	34.02° N, 118.14° W 11km	US	VII (453 k)	0	1
18	1987-11-24 01:54 UTC	6	33.22° N, 115.79° W 15km	US	VIII (250)	0	2
19	1987-11-24 13:15 UTC	6.5	33.07° N, 115.95° W 2km	US	IX (599)	0	0
20	1988-02-11 15:25 UTC	4.8	34.08° N, 118.05° W 12km	US	VII (11 k)	0	1
21	1988-12-03 11:38 UTC	5	34.15° N, 118.13° W 13km	US	VI (1,090 k)	0	0
22	1989-01-19 06:53 UTC	5.2	33.91° N, 118.7° W 9km	US	VI (14 k)	0	0
23	1990-02-28 23:43 UTC	5.7	34.14° N, 117.75° W 3km	US	VIII (12 k)	0	0
24	1991-06-28 14:43 UTC	5.6	34.24° N, 118.01° W 11km	US	VII (8 k)	1	1
25	1992-04-23 04:50 UTC	6.2	33.87° N, 116.52° W 4km	US	VIII (16 k)	0	0
26	1992-06-28 11:57 UTC	7.3	34.18° N, 116.53° W 11km	US	IX (2 k)	1	1
27	1992-06-28 15:05 UTC	6.5	34.29° N, 116.82° W 12km	US	IX (2 k)	0	0	landslide
28	1992-06-29 16:01 UTC	5.5	33.82° N, 116.44° W 15km	US	VIII (8 k)	0	0
29	1992-07-11 18:14 UTC	5.7	34.96° N, 118.19° W 15km	US	VIII (568)	0	0
30	1992-11-27 16:00 UTC	5.6	34.23° N, 117.01° W 5km	US	VII (4 k)	0	0
31	1994-01-17 12:30 UTC	6.7	34.16° N, 118.58° W 11km	US	IX (181 k)	33	33	landslide, liquefaction
32	1994-01-17 23:33 UTC	5.8	34.27° N, 118.79° W 8km	US	VIII (70 k)	0	0
33	1994-01-18 00:43 UTC	5.5	34.26° N, 118.89° W 17km	US	VII (97 k)	0	0
34	1995-09-20 23:27 UTC	5.5	35.63° N, 117.73° W 15km	US	VIII (852)	0	0
35	1999-10-16 09:46 UTC	7.1	34.52° N, 116.44° W 5km	US	IX (17 k)	0	0
36	1999-10-16 09:59 UTC	5.8	34.56° N, 116.79° W 9km	US	VIII (19)	0	0
37	1999-10-16 12:57 UTC	5.7	34.27° N, 116.23° W 12km	US	VIII (201)	0	0
38	2001-12-08 23:36 UTC	5.7	32.05° N, 114.9° W 9km	MX	VIII (72)	0	0
39	2002-02-22 19:32 UTC	5.5	32.38° N, 115.19° W 9km	MX	VIII (8 k)	0	0
40	2005-06-16 20:53 UTC	4.9	33.95° N, 117.05° W 18km	US	VI (63 k)	0	0

MMI	City	Population
II	Calipatria	8k
II	El Centro	38k
II	Imperial	10k
II	Holtville	5k
II	Salton City	1k
II	Niland	1k
II	Heber	3k
II	Seeley	2k
II	Westmorland	2k
II	Brawley	22k
II	Calexico	36k
I	El Sauzal	9k
I	Spring Valley	26k
I	Primo Tapia	5k
I	Progreso	5k
I	Estacion Coahuila	8k
I	Alberto Oviedo Mota	8k
I	Guadalupe Victoria	18k
I	Delta	6k
I	Tijuana	1,376k
I	Tecolots	5k
I	Tecate	58k
I	Rosarito	66k
I	Mexicali	597k
I	Maneadero	18k
I	Ensenada	257k
I	Puebla	9k
I	Hermosillo	6k
I	Alpine	15k
I	Bonita	13k
I	Bonsall	5k
I	Borrego Springs	3k
I	Bostonia	16k
I	Chula Vista	213k
I	Coronado	24k
I	Crest	3k
I	Del Mar	4k
I	El Cajon	95k
I	Encinitas	58k
I	Escondido	137k
I	Fallbrook	34k
I	Granite Hills	3k
I	Harbison Canyon	5k
I	Hidden Meadows	4k
I	Imperial Beach	27k
I	Jamul	8k
I	Julian	2k
I	La Mesa	54k
I	La Presa	35k
I	Lake San Marcos	4k
I	Lakeside	19k
I	Lemon Grove	25k
I	National City	62k
I	Pine Valley	2k
I	Poway	48k
I	Ramona	17k
I	Rancho San Diego	28k
I	Rancho Santa Fe	3k
I	San Diego	1,223k
I	San Diego Country Estates	11k
I	San Marcos	70k
I	Santee	53k
I	Solana Beach	13k
I	Valley Center	10k
I	Vista	93k
I	Winter Gardens	21k

(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.