PAGER - M 3.2 - 4.3 km (2.7 mi) NNW of Carson, 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?Saturday, July 23rd, 2011 at 07:36:40 UTC (00:36:40 local)Location: 33.9° N, 118.3° WDepth: 16kmEvent Id: CI10980341Alert Version: 4Created: 1 day, 0 hours 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 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 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 Modified Mercalli Intensity | I | II-III | IV | V | VI | VII | VIII | IX | X | |
|---|---|---|---|---|---|---|---|---|---|---|
| Est. Population Exposure | 12,485k | 5,204k | 633k | 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 |
| 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
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.
Historical Earthquakes (with MMI)
| Date (UTC) | Dist (km) | Mag | Max MMI (#) | Shaking Deaths |
|---|---|---|---|---|
| 1984-11-26 | 383 | 5.1 | V (17k) | 0 |
| 1994-01-17 | 41 | 6.7 | IX (181k) | 33 |
| 2003-12-22 | 320 | 6.6 | VII (213) | 2 |
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 |
|---|---|---|
| IV | Gardena | 61k |
| IV | West Compton | 6k |
| IV | Carson | 96k |
| IV | Alondra Park | 8k |
| IV | West Athens | 9k |
| IV | Willowbrook | 35k |
| III | Long Beach | 483k |
| II | Los Angeles | 3,695k |
| I | Santa Ana | 343k |
| I | Anaheim | 328k |
| I | Riverside | 298k |
(k = x1,000)
| # | Date/Time | Mag | Lat, Lon, Depth | Country | Max MMI (Exposed) | Deaths | Secondary Effects | |
|---|---|---|---|---|---|---|---|---|
| Shaking | Total | |||||||
| 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 | 1986-07-31 07:22 UTC | 5.5 | 37.46° N, 118.4° W 15km | US | VII (210) | 0 | 0 | |
| 28 | 1987-10-01 14:42 UTC | 5.9 | 34.06° N, 118.13° W 14km | US | VIII (20 k) | 8 | 8 | |
| 29 | 1987-10-04 10:59 UTC | 5.2 | 34.02° N, 118.14° W 11km | US | VII (453 k) | 0 | 1 | |
| 30 | 1987-11-24 01:54 UTC | 6 | 33.22° N, 115.79° W 15km | US | VIII (250) | 0 | 2 | |
| 31 | 1987-11-24 13:15 UTC | 6.5 | 33.07° N, 115.95° W 2km | US | IX (599) | 0 | 0 | |
| 32 | 1988-02-11 15:25 UTC | 4.8 | 34.08° N, 118.05° W 12km | US | VII (11 k) | 0 | 1 | |
| 33 | 1988-12-03 11:38 UTC | 5 | 34.15° N, 118.13° W 13km | US | VI (1,090 k) | 0 | 0 | |
| 34 | 1989-01-19 06:53 UTC | 5.2 | 33.91° N, 118.7° W 9km | US | VI (14 k) | 0 | 0 | |
| 35 | 1990-02-28 23:43 UTC | 5.7 | 34.14° N, 117.75° W 3km | US | VIII (12 k) | 0 | 0 | |
| 36 | 1991-06-28 14:43 UTC | 5.6 | 34.24° N, 118.01° W 11km | US | VII (8 k) | 1 | 1 | |
| 37 | 1992-04-23 04:50 UTC | 6.2 | 33.87° N, 116.52° W 4km | US | VIII (16 k) | 0 | 0 | |
| 38 | 1992-06-28 11:57 UTC | 7.3 | 34.18° N, 116.53° W 11km | US | IX (2 k) | 1 | 1 | |
| 39 | 1992-06-28 15:05 UTC | 6.5 | 34.29° N, 116.82° W 12km | US | IX (2 k) | 0 | 0 | landslide |
| 40 | 1992-06-29 10:14 UTC | 5.7 | 36.77° N, 116.32° W 11km | US | VIII (127) | 0 | 0 | |
| 41 | 1992-06-29 16:01 UTC | 5.5 | 33.82° N, 116.44° W 15km | US | VIII (8 k) | 0 | 0 | |
| 42 | 1992-07-11 18:14 UTC | 5.7 | 34.96° N, 118.19° W 15km | US | VIII (568) | 0 | 0 | |
| 43 | 1992-11-27 16:00 UTC | 5.6 | 34.23° N, 117.01° W 5km | US | VII (4 k) | 0 | 0 | |
| 44 | 1993-05-17 23:20 UTC | 6.1 | 37.15° N, 117.82° W 10km | US | VIII (6) | 0 | 0 | |
| 45 | 1994-01-17 12:30 UTC | 6.7 | 34.16° N, 118.58° W 11km | US | IX (181 k) | 33 | 33 | landslide, liquefaction |
| 46 | 1994-01-17 23:33 UTC | 5.8 | 34.27° N, 118.79° W 8km | US | VIII (70 k) | 0 | 0 | |
| 47 | 1994-01-18 00:43 UTC | 5.5 | 34.26° N, 118.89° W 17km | US | VII (97 k) | 0 | 0 | |
| 48 | 1995-09-20 23:27 UTC | 5.5 | 35.63° N, 117.73° W 15km | US | VIII (852) | 0 | 0 | |
| 49 | 1999-10-16 09:46 UTC | 7.1 | 34.52° N, 116.44° W 5km | US | IX (17 k) | 0 | 0 | |
| 50 | 1999-10-16 09:59 UTC | 5.8 | 34.56° N, 116.79° W 9km | US | VIII (19) | 0 | 0 | |
| 51 | 1999-10-16 12:57 UTC | 5.7 | 34.27° N, 116.23° W 12km | US | VIII (201) | 0 | 0 | |
| 52 | 2001-12-08 23:36 UTC | 5.7 | 32.05° N, 114.9° W 9km | MX | VIII (72) | 0 | 0 | |
| 53 | 2002-02-22 19:32 UTC | 5.5 | 32.38° N, 115.19° W 9km | MX | VIII (8 k) | 0 | 0 | |
| 54 | 2003-12-22 19:15 UTC | 6.6 | 35.62° N, 121.07° W 16km | US | VII (213) | 2 | 2 | landslide, liquefaction |
| 55 | 2004-09-28 17:15 UTC | 6 | 35.75° N, 120.32° W 5km | US | VII (160) | 0 | 0 | |
| 56 | 2005-06-16 20:53 UTC | 4.9 | 33.95° N, 117.05° W 18km | US | VI (63 k) | 0 | 0 | |
| MMI | City | Population |
|---|---|---|
| IV | Gardena | 61k |
| IV | West Compton | 6k |
| IV | Carson | 96k |
| IV | Alondra Park | 8k |
| IV | West Athens | 9k |
| IV | Willowbrook | 35k |
| IV | West Carson | 22k |
| IV | Torrance | 145k |
| IV | Lawndale | 33k |
| IV | Compton | 97k |
| IV | Westmont | 32k |
| III | Hawthorne | 87k |
| III | Del Aire | 10k |
| III | Lennox | 23k |
| III | Redondo Beach | 68k |
| III | Lomita | 21k |
| III | East Compton | 10k |
| III | Hermosa Beach | 20k |
| III | Manhattan Beach | 37k |
| III | Inglewood | 116k |
| III | Lynwood | 72k |
| III | Signal Hill | 11k |
| III | Palos Verdes Estates | 14k |
| III | Rolling Hills Estates | 8k |
| III | Walnut Park | 17k |
| III | South Gate | 100k |
| III | Paramount | 57k |
| III | Lakewood | 82k |
| III | Long Beach | 483k |
| III | El Segundo | 17k |
| III | Huntington Park | 64k |
| III | Cudahy | 26k |
| II | Rolling Hills | 2k |
| II | Bell | 38k |
| II | Maywood | 29k |
| II | Bellflower | 76k |
| II | Downey | 112k |
| II | Ladera Heights | 7k |
| II | Bell Gardens | 46k |
| II | Marina del Rey | 9k |
| II | Rancho Palos Verdes | 43k |
| II | Culver City | 40k |
| II | Rossmoor | 11k |
| II | Commerce | 14k |
| II | Artesia | 17k |
| II | East Los Angeles | 125k |
| II | Hawaiian Gardens | 16k |
| II | Los Angeles | 3,695k |
| II | Los Alamitos | 12k |
| II | Norwalk | 109k |
| II | Santa Monica | 88k |
| II | Seal Beach | 24k |
| II | Belvedere | 2k |
| II | Cerritos | 53k |
| II | Pico Rivera | 66k |
| II | Santa Fe Springs | 16k |
| II | Westwood | 2k |
| II | Beverly Hills | 35k |
| II | Montebello | 64k |
| II | South Whittier | 59k |
| II | Cypress | 47k |
| II | La Palma | 16k |
| II | West Hollywood | 37k |
| II | Whittier | 86k |
| I | Monterey Park | 63k |
| I | La Mirada | 50k |
| I | Buena Park | 79k |
| I | Hollywood | 168k |
| I | East La Mirada | 10k |
| I | South San Gabriel | 8k |
| I | Alhambra | 88k |
| I | East San Gabriel | 16k |
| I | South El Monte | 22k |
| I | South Pasadena | 25k |
| I | Glendale | 195k |
| I | San Gabriel | 42k |
| I | La Habra Heights | 6k |
| I | Stanton | 38k |
| I | Westminster | 90k |
| I | Rosemead | 56k |
| I | Hidden Hills | 2k |
| I | Rowland Heights | 52k |
| I | Agoura | 21k |
| I | Calabasas | 21k |
| I | Covina | 49k |
| I | Hacienda Heights | 54k |
| I | La Puente | 43k |
| I | Oak Park | 2k |
| I | South San Jose Hills | 22k |
| I | Walnut | 32k |
| I | Irwindale | 2k |
| I | Valinda | 24k |
| I | West Covina | 110k |
| I | Agoura Hills | 22k |
| I | Baldwin Park | 81k |
| I | Fillmore | 15k |
| I | Acton | 3k |
| I | Adelanto | 18k |
| I | Aliso Viejo | 41k |
| I | Altadena | 43k |
| I | Anaheim | 328k |
| I | Apple Valley | 64k |
| I | Arcadia | 57k |
| I | Avalon | 3k |
| I | Avocado Heights | 16k |
| I | Azusa | 48k |
| I | Bloomington | 22k |
| I | Bonsall | 5k |
| I | Bradbury | 1k |
| I | Brea | 40k |
| I | Burbank | 105k |
| I | Calimesa | 8k |
| I | Camarillo | 63k |
| I | Canyon Lake | 12k |
| I | Carlsbad | 78k |
| I | Carpinteria | 14k |
| I | Casa Conejo | 3k |
| I | Channel Islands Beach | 3k |
| I | Charter Oak | 9k |
| I | Chino | 75k |
| I | Chino Hills | 67k |
| I | Citrus | 11k |
| I | Claremont | 35k |
| I | Colton | 52k |
| I | Corona | 153k |
| I | Costa Mesa | 109k |
| I | Coto De Caza | 19k |
| I | Crestline | 11k |
| I | Dana Point | 36k |
| I | Desert View Highlands | 2k |
| I | Diamond Bar | 59k |
| I | Duarte | 23k |
| I | East Pasadena | 6k |
| I | El Cerrito | 5k |
| I | El Monte | 125k |
| I | El Rio | 6k |
| I | Encinitas | 58k |
| I | Escondido | 137k |
| I | Fallbrook | 34k |
| I | Fontana | 169k |
| I | Foothill Ranch | 12k |
| I | Fountain Valley | 56k |
| I | Fullerton | 135k |
| I | Garden Grove | 167k |
| I | Glen Avon | 16k |
| I | Glendora | 52k |
| I | Grand Terrace | 13k |
| I | Hesperia | 74k |
| I | Hidden Meadows | 4k |
| I | Highgrove | 4k |
| I | Highland | 51k |
| I | Home Gardens | 11k |
| I | Homeland | 4k |
| I | Huntington Beach | 196k |
| I | Irvine | 189k |
| I | La Canada Flintridge | 21k |
| I | La Habra | 60k |
| I | La Verne | 34k |
| I | Laguna Beach | 24k |
| I | Laguna Hills | 31k |
| I | Laguna Niguel | 66k |
| I | Laguna Woods | 20k |
| I | Lake Arrowhead | 11k |
| I | Lake Elsinore | 41k |
| I | Lake Forest | 77k |
| I | Lake Los Angeles | 14k |
| I | Lake San Marcos | 4k |
| I | Lakeland Village | 6k |
| I | Lakeview | 2k |
| I | Lancaster | 130k |
| I | Las Flores | 6k |
| I | Las Flores | 6k |
| I | Littlerock | 1k |
| I | Loma Linda | 21k |
| I | Los Serranos | 7k |
| I | Malibu | 13k |
| I | Malibu Beach | 14k |
| I | Mayflower Village | 5k |
| I | Meiners Oaks | 4k |
| I | Mentone | 9k |
| I | Mira Loma | 19k |
| I | Mira Monte | 7k |
| I | Mission Viejo | 96k |
| I | Monrovia | 38k |
| I | Montclair | 36k |
| I | Moorpark | 37k |
| I | Moreno Valley | 169k |
| I | Mountain View Acres | 3k |
| I | Murrieta | 89k |
| I | Murrieta Hot Springs | 4k |
| I | Muscoy | 10k |
| I | Newport Beach | 79k |
| I | Norco | 27k |
| I | North El Monte | 4k |
| I | North Glendale | 203k |
| I | Nuevo | 5k |
| I | Oak View | 5k |
| I | Oceanside | 161k |
| I | Ojai | 8k |
| I | Ontario | 173k |
| I | Orange | 129k |
| I | Oxnard | 170k |
| I | Oxnard Shores | 187k |
| I | Palmdale | 135k |
| I | Pasadena | 145k |
| I | Pedley | 13k |
| I | Perris | 46k |
| I | Piru | 1k |
| I | Placentia | 49k |
| I | Pomona | 156k |
| I | Port Hueneme | 21k |
| I | Portola Hills | 9k |
| I | Quail Valley | 2k |
| I | Quartz Hill | 10k |
| I | Rainbow | 2k |
| I | Rancho Cucamonga | 169k |
| I | Rancho Santa Margarita | 51k |
| I | Redlands | 70k |
| I | Rialto | 102k |
| I | Riverside | 298k |
| I | Romoland | 3k |
| I | Rubidoux | 32k |
| I | Running Springs | 6k |
| I | San Antonio Heights | 3k |
| I | San Bernardino | 202k |
| I | San Clemente | 62k |
| I | San Dimas | 36k |
| I | San Fernando | 25k |
| I | San Joaquin Hills | 3k |
| I | San Juan Capistrano | 35k |
| I | San Marcos | 70k |
| I | San Marino | 13k |
| I | Santa Ana | 343k |
| I | Santa Clarita | 169k |
| I | Santa Paula | 29k |
| I | Sedco Hills | 3k |
| I | Sierra Madre | 11k |
| I | Simi Valley | 119k |
| I | Sun City | 20k |
| I | Sunnyslope | 5k |
| I | Temecula | 85k |
| I | Temple City | 38k |
| I | Thousand Oaks | 128k |
| I | Trabuco Canyon | 3k |
| I | Tustin | 69k |
| I | North Tustin | 24k |
| I | Upland | 74k |
| I | Val Verde | 1k |
| I | Ventura | 97k |
| I | Victorville | 84k |
| I | Villa Park | 6k |
| I | Vincent | 15k |
| I | Vista | 93k |
| I | West Puente Valley | 24k |
| I | Westlake Village | 9k |
| I | Wildomar | 16k |
| I | Winchester | 2k |
| I | Woodcrest | 9k |
| I | Wrightwood | 4k |
| I | Yorba Linda | 65k |
| I | Yucaipa | 50k |
(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.
