PAGER - M 5.4 - 4.0 mi SE of Diamond Bar, CA

Alert level does not include impacts from earthquake-related hazards such as tsunamis, landslides, fires or liquefaction.

Earthquake Shaking Alert Level: ORANGE

Download Alert PDF What's this?Tuesday, July 29th, 2008 at 18:42:15 UTC (11:42:15 local)Location: 34° N, 117.8° WDepth: 13kmEvent Id: CI14383980Alert Version: 1Created: 112 weeks, 2 days after earthquake.

Alert Information

Orange alert level for economic losses. Significant damage is likely and the disaster is potentially widespread. Estimated economic losses are less than 1% of GDP of the United States. Past events with this alert level have required a regional or national level response. Yellow alert level for shaking-related fatalities. Some casualties are possible.

Estimated Fatalities

ESTIMATED FATALITY ALERT: YELLOW
ESTIMATED FATALITIES (LEVEL)	Probability (%)
0 (GREEN)	50
1 to 9 (YELLOW)	50
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: ORANGE
ESTIMATED VALUE IN USD (LEVEL)	Probability (%)
0 to 1 million (GREEN)	1
1 to 10 million (YELLOW)	7
10 to 100 million (YELLOW)	24
100 million to 1 billion (ORANGE)	36
1 to 10 billion (RED)	24
10 to 100 billion (RED)	7
100 billion + (RED)	1

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		---*	30k*	5,224k*	7,545k	3,979k	396k	7k	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 highly resistant to earthquake shaking, though some vulnerable structures exist. The predominant vulnerable building types are unreinforced brick masonry and reinforced masonry construction.

Historical Earthquakes (with MMI)

Date (UTC)	Dist (km)	Mag	Max MMI (#)	Shaking Deaths
1987-10-01	36	5.9	VIII (20k)	8
1994-01-17	78	6.7	IX (181k)	33
2002-02-22	297	5.5	VIII (8k)	0

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
VIII	Walnut	32k
VII	Diamond Bar	59k
VII	Covina	49k
VII	South San Jose Hills	22k
VII	Stanton	38k
VII	Charter Oak	9k
VI	Anaheim	328k
V	Santa Ana	343k
V	Riverside	298k
V	Los Angeles	3,695k
V	Long Beach	483k

(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	1978-10-04 16:42 UTC	5.4	37.39° N, 118.69° W 8km	US	VI (598)	0	0
5	1979-03-15 21:07 UTC	5.5	34.2° N, 116.53° W 15km	US	VII (744)	0	0
6	1979-10-15 23:17 UTC	6.5	32.82° N, 115.64° W 9km	US	IX (3 k)	0	0
7	1979-10-16 05:49 UTC	5.6	33.02° N, 115.57° W 5km	US	VIII (611)	0	0
8	1979-10-16 06:19 UTC	5.1	32.73° N, 115.76° W 10km	US	VII (77)	0	0
9	1979-10-16 06:58 UTC	5.6	32.95° N, 115.62° W 10km	US	VIII (287)	0	0
10	1979-10-16 23:16 UTC	5.5	32.92° N, 115.55° W 4km	US	VIII (40)	0	0
11	1980-02-25 10:47 UTC	5.6	33.52° N, 116.55° W 6km	US	VII (847)	0	0
12	1980-05-25 19:44 UTC	5.9	37.38° N, 118.84° W 4km	US	VII (2)	0	0	landslide
13	1980-05-27 14:50 UTC	5.9	37.42° N, 118.8° W 1km	US	VIII (3)	0	0
14	1980-06-09 03:28 UTC	6.3	32.27° N, 114.91° W 5km	MX	IX (336)	1	1
15	1981-04-26 12:09 UTC	5.9	33.12° N, 115.64° W 1km	US	VIII (11)	0	0
16	1981-09-04 15:50 UTC	5.8	33.9° N, 119.03° W 15km	US	VI (13 k)	0	0
17	1983-05-02 23:42 UTC	6.3	36.22° N, 120.3° W 10km	US	IX (29)	0	0
18	1983-05-02 23:46 UTC	5.7	36.23° N, 120.29° W 8km	US	VIII (1 k)	0	0
19	1983-07-09 07:40 UTC	5.1	36.17° N, 120.37° W 1km	US	VII (10 k)	0	0
20	1983-07-22 02:39 UTC	5.7	36.2° N, 120.34° W 7km	US	VII (1 k)	0	0
21	1984-11-23 18:08 UTC	5.8	37.34° N, 118.51° W 15km	US	VIII (8 k)	0	0
22	1984-11-23 19:12 UTC	5.5	37.44° N, 118.64° W 0km	US	VII (381)	0	0
23	1984-11-26 16:21 UTC	5.1	37.29° N, 118.76° W 10km	US	V (17 k)	0	0	landslide
24	1985-08-04 12:01 UTC	6.1	36.14° N, 120.11° W 15km	US	IX (713)	0	0
25	1986-07-08 09:20 UTC	6	33.97° N, 116.78° W 12km	US	VIII (8 k)	0	0	landslide
26	1986-07-13 13:47 UTC	5.8	33.05° N, 117.85° W 2km	US	V (9,528 k)	0	1	landslide
27	1986-07-20 14:29 UTC	5.8	37.5° N, 118.45° W 15km	US	VIII (9)	0	0
28	1986-07-21 14:42 UTC	6.2	37.5° N, 118.44° W 10km	US	VIII (375)	0	0
29	1986-07-21 14:51 UTC	5.7	37.5° N, 118.37° W 9km	US	VIII (270)	0	0
30	1986-07-31 07:22 UTC	5.5	37.46° N, 118.4° W 15km	US	VII (210)	0	0
31	1987-10-01 14:42 UTC	5.9	34.06° N, 118.13° W 14km	US	VIII (20 k)	8	8
32	1987-10-04 10:59 UTC	5.2	34.02° N, 118.14° W 11km	US	VII (453 k)	0	1
33	1987-11-24 01:54 UTC	6	33.22° N, 115.79° W 15km	US	VIII (250)	0	2
34	1987-11-24 13:15 UTC	6.5	33.07° N, 115.95° W 2km	US	IX (599)	0	0
35	1988-02-11 15:25 UTC	4.8	34.08° N, 118.05° W 12km	US	VII (11 k)	0	1
36	1988-12-03 11:38 UTC	5	34.15° N, 118.13° W 13km	US	VI (1,090 k)	0	0
37	1989-01-19 06:53 UTC	5.2	33.91° N, 118.7° W 9km	US	VI (14 k)	0	0
38	1990-02-28 23:43 UTC	5.7	34.14° N, 117.75° W 3km	US	VIII (12 k)	0	0
39	1991-06-28 14:43 UTC	5.6	34.24° N, 118.01° W 11km	US	VII (8 k)	1	1
40	1992-04-23 04:50 UTC	6.2	33.87° N, 116.52° W 4km	US	VIII (16 k)	0	0
41	1992-06-28 11:57 UTC	7.3	34.18° N, 116.53° W 11km	US	IX (2 k)	1	1
42	1992-06-28 15:05 UTC	6.5	34.29° N, 116.82° W 12km	US	IX (2 k)	0	0	landslide
43	1992-06-29 10:14 UTC	5.7	36.77° N, 116.32° W 11km	US	VIII (127)	0	0
44	1992-06-29 16:01 UTC	5.5	33.82° N, 116.44° W 15km	US	VIII (8 k)	0	0
45	1992-07-11 18:14 UTC	5.7	34.96° N, 118.19° W 15km	US	VIII (568)	0	0
46	1992-11-27 16:00 UTC	5.6	34.23° N, 117.01° W 5km	US	VII (4 k)	0	0
47	1993-05-17 23:20 UTC	6.1	37.15° N, 117.82° W 10km	US	VIII (6)	0	0
48	1994-01-17 12:30 UTC	6.7	34.16° N, 118.58° W 11km	US	IX (181 k)	33	33	landslide, liquefaction
49	1994-01-17 23:33 UTC	5.8	34.27° N, 118.79° W 8km	US	VIII (70 k)	0	0
50	1994-01-18 00:43 UTC	5.5	34.26° N, 118.89° W 17km	US	VII (97 k)	0	0
51	1995-09-20 23:27 UTC	5.5	35.63° N, 117.73° W 15km	US	VIII (852)	0	0
52	1999-05-15 13:22 UTC	5.5	37.45° N, 118.8° W 1km	US	VII (4)	0	0
53	1999-10-16 09:46 UTC	7.1	34.52° N, 116.44° W 5km	US	IX (17 k)	0	0
54	1999-10-16 09:59 UTC	5.8	34.56° N, 116.79° W 9km	US	VIII (19)	0	0
55	1999-10-16 12:57 UTC	5.7	34.27° N, 116.23° W 12km	US	VIII (201)	0	0
56	2001-12-08 23:36 UTC	5.7	32.05° N, 114.9° W 9km	MX	VIII (72)	0	0
57	2002-02-22 19:32 UTC	5.5	32.38° N, 115.19° W 9km	MX	VIII (8 k)	0	0
58	2003-12-22 19:15 UTC	6.6	35.62° N, 121.07° W 16km	US	VII (213)	2	2	landslide, liquefaction
59	2004-09-28 17:15 UTC	6	35.75° N, 120.32° W 5km	US	VII (160)	0	0
60	2005-06-16 20:53 UTC	4.9	33.95° N, 117.05° W 18km	US	VI (63 k)	0	0

MMI	City	Population
VIII	Walnut	32k
VII	Diamond Bar	59k
VII	Covina	49k
VII	South San Jose Hills	22k
VII	Stanton	38k
VII	Charter Oak	9k
VI	Placentia	49k
VI	Valinda	24k
VI	West Covina	110k
VI	La Puente	43k
VI	Chino	75k
VI	Garden Grove	167k
VI	Pomona	156k
VI	Brea	40k
VI	Buena Park	79k
VI	Fullerton	135k
VI	Citrus	11k
VI	Chino Hills	67k
VI	Anaheim	328k
VI	Yorba Linda	65k
VI	Cypress	47k
VI	Westminster	90k
VI	Montclair	36k
VI	San Dimas	36k
VI	West Puente Valley	24k
VI	Rowland Heights	52k
VI	Los Alamitos	12k
VI	La Verne	34k
VI	Los Serranos	7k
VI	Claremont	35k
VI	Rossmoor	11k
VI	Glendora	52k
VI	La Palma	16k
VI	Irwindale	2k
VI	Hacienda Heights	54k
VI	Belvedere	2k
VI	Hawaiian Gardens	16k
VI	Pico Rivera	66k
VI	La Habra Heights	6k
VI	East La Mirada	10k
VI	East Los Angeles	125k
VI	Walnut Park	17k
VI	Cerritos	53k
VI	Commerce	14k
VI	La Habra	60k
VI	Montebello	64k
VI	Azusa	48k
VI	Ontario	173k
VI	Fountain Valley	56k
VI	Lakewood	82k
VI	Whittier	86k
VI	Huntington Park	64k
VI	Villa Park	6k
VI	Artesia	17k
VI	Corona	153k
VI	South Gate	100k
VI	North Tustin	24k
VI	Santa Fe Springs	16k
VI	Avocado Heights	16k
VI	Baldwin Park	81k
VI	Orange	129k
VI	Maywood	29k
VI	South El Monte	22k
VI	Bellflower	76k
VI	La Mirada	50k
VI	South Whittier	59k
VI	Bell Gardens	46k
V	Lynwood	72k
V	El Cerrito	5k
V	El Monte	125k
V	Santa Ana	343k
V	Upland	74k
V	Norwalk	109k
V	Norco	27k
V	Paramount	57k
V	Rancho Cucamonga	169k
V	South San Gabriel	8k
V	Tustin	69k
V	Willowbrook	35k
V	Bell	38k
V	Downey	112k
V	Hidden Hills	2k
V	San Antonio Heights	3k
V	Rosemead	56k
V	Monterey Park	63k
V	Home Gardens	11k
V	Calabasas	21k
V	Mira Loma	19k
V	East Compton	10k
V	Pasadena	145k
V	San Bernardino	202k
V	Pedley	13k
V	Rubidoux	32k
V	Glen Avon	16k
V	North El Monte	4k
V	Seal Beach	24k
V	Temple City	38k
V	South Pasadena	25k
V	Alhambra	88k
V	Foothill Ranch	12k
V	Canyon Lake	12k
V	Riverside	298k
V	Sedco Hills	3k
V	Compton	97k
V	Sunnyslope	5k
V	Hollywood	168k
V	Portola Hills	9k
V	Los Angeles	3,695k
V	Costa Mesa	109k
V	Lake Elsinore	41k
V	Murrieta	89k
V	Cudahy	26k
V	Lake Forest	77k
V	La Canada Flintridge	21k
V	Newport Beach	79k
V	San Marino	13k
V	East San Gabriel	16k
V	Mayflower Village	5k
V	San Gabriel	42k
V	Irvine	189k
V	Trabuco Canyon	3k
V	Fontana	169k
V	Wildomar	16k
V	Rancho Santa Margarita	51k
V	Arcadia	57k
V	Altadena	43k
V	Murrieta Hot Springs	4k
V	Bradbury	1k
V	Lakeland Village	6k
V	Mission Viejo	96k
V	Quail Valley	2k
V	Sun City	20k
V	Bloomington	22k
V	Colton	52k
V	Laguna Woods	20k
V	San Jacinto	29k
V	Burbank	105k
V	Highgrove	4k
V	Las Flores	6k
V	Woodcrest	9k
V	Laguna Hills	31k
V	Sierra Madre	11k
V	Aliso Viejo	41k
V	North Glendale	203k
V	San Joaquin Hills	3k
V	Huntington Beach	196k
V	Loma Linda	21k
V	Duarte	23k
V	Glendale	195k
V	East Pasadena	6k
V	Westmont	32k
V	East Hemet	14k
V	San Fernando	25k
V	Long Beach	483k
V	Rialto	102k
V	Romoland	3k
V	Signal Hill	11k
V	West Athens	9k
V	Coto De Caza	19k
V	West Compton	6k
V	Wrightwood	4k
V	Winchester	2k
IV	Laguna Beach	24k
IV	Beverly Hills	35k
IV	Grand Terrace	13k
IV	West Hollywood	37k
IV	Monrovia	38k
IV	Muscoy	10k
IV	Nuevo	5k
IV	Agoura	21k
IV	Moreno Valley	169k
IV	Lakeview	2k
IV	Val Verde	1k
IV	San Clemente	62k
IV	Dana Point	36k
IV	Valle Vista	12k
IV	Carson	96k
IV	Perris	46k
IV	Culver City	40k
IV	Highland	51k
IV	Hemet	69k
IV	Santa Clarita	169k
IV	West Carson	22k
IV	Inglewood	116k
IV	Laguna Niguel	66k
IV	Acton	3k
IV	Santa Monica	88k
IV	Apple Valley	64k
IV	Westwood	2k
IV	Littlerock	1k
IV	Lennox	23k
IV	Homeland	4k
IV	Gardena	61k
IV	Marina del Rey	9k
IV	Palmdale	135k
IV	Rolling Hills Estates	8k
IV	Desert View Highlands	2k
IV	Hawthorne	87k
IV	Palos Verdes Estates	14k
IV	Simi Valley	119k
IV	Del Aire	10k
IV	Lancaster	130k
IV	San Juan Capistrano	35k
IV	Alondra Park	8k
IV	Ladera Heights	7k
IV	Moorpark	37k
IV	Quartz Hill	10k
IV	Malibu Beach	14k
IV	Piru	1k
IV	Fillmore	15k
IV	Redlands	70k
IV	Running Springs	6k
IV	Fallbrook	34k
IV	Lake Los Angeles	14k
IV	Lawndale	33k
IV	Lomita	21k
IV	Victorville	84k
IV	Adelanto	18k
IV	El Segundo	17k
IV	Redondo Beach	68k
IV	Rainbow	2k
IV	Rolling Hills	2k
IV	Agoura Hills	22k
IV	Avalon	3k
IV	Banning	30k
IV	Mountain View Acres	3k
IV	Manhattan Beach	37k
IV	Vincent	15k
IV	Bonsall	5k
IV	Lake Arrowhead	11k
IV	Beaumont	19k
IV	Westlake Village	9k
IV	Hesperia	74k
IV	Carlsbad	78k
IV	Oak Park	2k
IV	Thousand Oaks	128k
IV	Hidden Meadows	4k
IV	Malibu	13k
IV	Hermosa Beach	20k
IV	Palm Springs	43k
IV	Valley Center	10k
IV	Temecula	85k
IV	Vista	93k
IV	Cherry Valley	6k
IV	Mentone	9k
IV	Las Flores	6k
IV	San Marcos	70k
IV	Big Bear City	6k
IV	Crestline	11k
IV	Torrance	145k
IV	Calimesa	8k
IV	Oceanside	161k
IV	Casa Conejo	3k
IV	Rancho Palos Verdes	43k
IV	Lake San Marcos	4k
IV	Yucaipa	50k
III	Morongo Valley	2k
III	Big Bear Lake	6k
III	Cabazon	3k

(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.