PAGER - M 2.9 - 7.7 km (4.8 mi) N of San Fernando, 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?Thursday, September 1st, 2011 at 21:35:34 UTC (14:35:34 local)Location: 34.4° N, 118.4° WDepth: 3kmEvent Id: CI11001253Alert 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 | 16,203k | 1,005k | 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 |
| 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 | 328 | 5.1 | V (17k) | 0 |
| 1994-01-17 | 25 | 6.7 | IX (181k) | 33 |
| 2003-12-22 | 277 | 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 |
|---|---|---|
| III | San Fernando | 25k |
| II | Santa Clarita | 169k |
| I | Los Angeles | 3,695k |
| I | Long Beach | 483k |
| I | Santa Ana | 343k |
| I | Anaheim | 328k |
| I | Riverside | 298k |
| I | North Glendale | 203k |
| I | San Bernardino | 202k |
| I | Huntington Beach | 196k |
| I | Glendale | 195k |
(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 16:33 UTC | 6.2 | 37.53° N, 118.83° W 11km | US | IX (72) | 0 | 0 | landslide |
| 13 | 1980-05-25 16:49 UTC | 5.9 | 37.55° N, 119.02° W 3km | US | VIII (16) | 0 | 0 | |
| 14 | 1980-05-25 19:44 UTC | 5.9 | 37.38° N, 118.84° W 4km | US | VII (2) | 0 | 0 | landslide |
| 15 | 1980-05-25 20:35 UTC | 5.9 | 37.44° N, 118.96° W 2km | US | VI (6 k) | 0 | 0 | |
| 16 | 1980-05-25 20:59 UTC | 5.5 | 37.59° N, 118.83° W 10km | US | VII (660) | 0 | 0 | |
| 17 | 1980-05-26 12:24 UTC | 5.6 | 37.58° N, 118.9° W 2km | US | VII (2 k) | 0 | 0 | |
| 18 | 1980-05-26 18:57 UTC | 5.7 | 37.56° N, 118.9° W 6km | US | VII (2 k) | 0 | 0 | |
| 19 | 1980-05-27 14:50 UTC | 5.9 | 37.42° N, 118.8° W 1km | US | VIII (3) | 0 | 0 | |
| 20 | 1981-04-26 12:09 UTC | 5.9 | 33.12° N, 115.64° W 1km | US | VIII (11) | 0 | 0 | |
| 21 | 1981-09-04 15:50 UTC | 5.8 | 33.9° N, 119.03° W 15km | US | VI (13 k) | 0 | 0 | |
| 22 | 1981-09-30 11:53 UTC | 5.6 | 37.55° N, 118.8° W 15km | US | VII (591) | 0 | 0 | |
| 23 | 1983-05-02 23:42 UTC | 6.3 | 36.22° N, 120.3° W 10km | US | IX (29) | 0 | 0 | |
| 24 | 1983-05-02 23:46 UTC | 5.7 | 36.23° N, 120.29° W 8km | US | VIII (1 k) | 0 | 0 | |
| 25 | 1983-07-09 07:40 UTC | 5.1 | 36.17° N, 120.37° W 1km | US | VII (10 k) | 0 | 0 | |
| 26 | 1983-07-22 02:39 UTC | 5.7 | 36.2° N, 120.34° W 7km | US | VII (1 k) | 0 | 0 | |
| 27 | 1984-11-23 18:08 UTC | 5.8 | 37.34° N, 118.51° W 15km | US | VIII (8 k) | 0 | 0 | |
| 28 | 1984-11-23 19:12 UTC | 5.5 | 37.44° N, 118.64° W 0km | US | VII (381) | 0 | 0 | |
| 29 | 1984-11-26 16:21 UTC | 5.1 | 37.29° N, 118.76° W 10km | US | V (17 k) | 0 | 0 | landslide |
| 30 | 1985-08-04 12:01 UTC | 6.1 | 36.14° N, 120.11° W 15km | US | IX (713) | 0 | 0 | |
| 31 | 1986-01-26 19:20 UTC | 5.4 | 36.75° N, 121.36° W 6km | US | VII (2 k) | 0 | 0 | |
| 32 | 1986-07-08 09:20 UTC | 6 | 33.97° N, 116.78° W 12km | US | VIII (8 k) | 0 | 0 | landslide |
| 33 | 1986-07-13 13:47 UTC | 5.8 | 33.05° N, 117.85° W 2km | US | V (9,528 k) | 0 | 1 | landslide |
| 34 | 1986-07-20 14:29 UTC | 5.8 | 37.5° N, 118.45° W 15km | US | VIII (9) | 0 | 0 | |
| 35 | 1986-07-21 14:42 UTC | 6.2 | 37.5° N, 118.44° W 10km | US | VIII (375) | 0 | 0 | |
| 36 | 1986-07-21 14:51 UTC | 5.7 | 37.5° N, 118.37° W 9km | US | VIII (270) | 0 | 0 | |
| 37 | 1986-07-21 22:07 UTC | 5.4 | 37.64° N, 118.49° W 6km | US | VII (15) | 0 | 0 | |
| 38 | 1986-07-31 07:22 UTC | 5.5 | 37.46° N, 118.4° W 15km | US | VII (210) | 0 | 0 | |
| 39 | 1987-10-01 14:42 UTC | 5.9 | 34.06° N, 118.13° W 14km | US | VIII (20 k) | 8 | 8 | |
| 40 | 1987-10-04 10:59 UTC | 5.2 | 34.02° N, 118.14° W 11km | US | VII (453 k) | 0 | 1 | |
| 41 | 1987-11-24 01:54 UTC | 6 | 33.22° N, 115.79° W 15km | US | VIII (250) | 0 | 2 | |
| 42 | 1987-11-24 13:15 UTC | 6.5 | 33.07° N, 115.95° W 2km | US | IX (599) | 0 | 0 | |
| 43 | 1988-02-11 15:25 UTC | 4.8 | 34.08° N, 118.05° W 12km | US | VII (11 k) | 0 | 1 | |
| 44 | 1988-12-03 11:38 UTC | 5 | 34.15° N, 118.13° W 13km | US | VI (1,090 k) | 0 | 0 | |
| 45 | 1989-01-19 06:53 UTC | 5.2 | 33.91° N, 118.7° W 9km | US | VI (14 k) | 0 | 0 | |
| 46 | 1990-02-28 23:43 UTC | 5.7 | 34.14° N, 117.75° W 3km | US | VIII (12 k) | 0 | 0 | |
| 47 | 1991-06-28 14:43 UTC | 5.6 | 34.24° N, 118.01° W 11km | US | VII (8 k) | 1 | 1 | |
| 48 | 1992-04-23 04:50 UTC | 6.2 | 33.87° N, 116.52° W 4km | US | VIII (16 k) | 0 | 0 | |
| 49 | 1992-06-28 11:57 UTC | 7.3 | 34.18° N, 116.53° W 11km | US | IX (2 k) | 1 | 1 | |
| 50 | 1992-06-28 15:05 UTC | 6.5 | 34.29° N, 116.82° W 12km | US | IX (2 k) | 0 | 0 | landslide |
| 51 | 1992-06-29 10:14 UTC | 5.7 | 36.77° N, 116.32° W 11km | US | VIII (127) | 0 | 0 | |
| 52 | 1992-06-29 16:01 UTC | 5.5 | 33.82° N, 116.44° W 15km | US | VIII (8 k) | 0 | 0 | |
| 53 | 1992-07-11 18:14 UTC | 5.7 | 34.96° N, 118.19° W 15km | US | VIII (568) | 0 | 0 | |
| 54 | 1992-11-27 16:00 UTC | 5.6 | 34.23° N, 117.01° W 5km | US | VII (4 k) | 0 | 0 | |
| 55 | 1993-05-17 23:20 UTC | 6.1 | 37.15° N, 117.82° W 10km | US | VIII (6) | 0 | 0 | |
| 56 | 1994-01-17 12:30 UTC | 6.7 | 34.16° N, 118.58° W 11km | US | IX (181 k) | 33 | 33 | landslide, liquefaction |
| 57 | 1994-01-17 23:33 UTC | 5.8 | 34.27° N, 118.79° W 8km | US | VIII (70 k) | 0 | 0 | |
| 58 | 1994-01-18 00:43 UTC | 5.5 | 34.26° N, 118.89° W 17km | US | VII (97 k) | 0 | 0 | |
| 59 | 1995-09-20 23:27 UTC | 5.5 | 35.63° N, 117.73° W 15km | US | VIII (852) | 0 | 0 | |
| 60 | 1998-08-12 14:10 UTC | 5.2 | 36.68° N, 121.53° W 9km | US | VII (1 k) | 0 | 0 | |
| 61 | 1999-05-15 13:22 UTC | 5.5 | 37.45° N, 118.8° W 1km | US | VII (4) | 0 | 0 | |
| 62 | 1999-10-16 09:46 UTC | 7.1 | 34.52° N, 116.44° W 5km | US | IX (17 k) | 0 | 0 | |
| 63 | 1999-10-16 09:59 UTC | 5.8 | 34.56° N, 116.79° W 9km | US | VIII (19) | 0 | 0 | |
| 64 | 1999-10-16 12:57 UTC | 5.7 | 34.27° N, 116.23° W 12km | US | VIII (201) | 0 | 0 | |
| 65 | 2002-02-22 19:32 UTC | 5.5 | 32.38° N, 115.19° W 9km | MX | VIII (8 k) | 0 | 0 | |
| 66 | 2003-12-22 19:15 UTC | 6.6 | 35.62° N, 121.07° W 16km | US | VII (213) | 2 | 2 | landslide, liquefaction |
| 67 | 2004-09-28 17:15 UTC | 6 | 35.75° N, 120.32° W 5km | US | VII (160) | 0 | 0 | |
| 68 | 2005-06-16 20:53 UTC | 4.9 | 33.95° N, 117.05° W 18km | US | VI (63 k) | 0 | 0 | |
| MMI | City | Population |
|---|---|---|
| III | San Fernando | 25k |
| II | Santa Clarita | 169k |
| I | Fillmore | 15k |
| I | South Taft | 2k |
| I | Acton | 3k |
| I | Adelanto | 18k |
| I | Agoura | 21k |
| I | Agoura Hills | 22k |
| I | Alhambra | 88k |
| I | Aliso Viejo | 41k |
| I | Alondra Park | 8k |
| I | Altadena | 43k |
| I | Anaheim | 328k |
| I | Arcadia | 57k |
| I | Artesia | 17k |
| I | Avocado Heights | 16k |
| I | Azusa | 48k |
| I | Baldwin Park | 81k |
| I | Bear Valley Springs | 6k |
| I | Bell | 38k |
| I | Bell Gardens | 46k |
| I | Bellflower | 76k |
| I | Belvedere | 2k |
| I | Beverly Hills | 35k |
| I | Bloomington | 22k |
| I | Boron | 2k |
| I | Bradbury | 1k |
| I | Brea | 40k |
| I | Buena Park | 79k |
| I | Burbank | 105k |
| I | Calabasas | 21k |
| I | California City | 8k |
| I | Camarillo | 63k |
| I | Canyon Lake | 12k |
| I | Carpinteria | 14k |
| I | Carson | 96k |
| I | Casa Conejo | 3k |
| I | Cerritos | 53k |
| 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 | Commerce | 14k |
| I | Compton | 97k |
| I | Corona | 153k |
| I | Costa Mesa | 109k |
| I | Coto De Caza | 19k |
| I | Covina | 49k |
| I | Crestline | 11k |
| I | Cudahy | 26k |
| I | Culver City | 40k |
| I | Cypress | 47k |
| I | Del Aire | 10k |
| I | Desert View Highlands | 2k |
| I | Diamond Bar | 59k |
| I | Downey | 112k |
| I | Duarte | 23k |
| I | East Compton | 10k |
| I | East La Mirada | 10k |
| I | East Los Angeles | 125k |
| I | East Pasadena | 6k |
| I | East San Gabriel | 16k |
| I | El Cerrito | 5k |
| I | El Monte | 125k |
| I | El Rio | 6k |
| I | El Segundo | 17k |
| I | Fontana | 169k |
| I | Foothill Ranch | 12k |
| I | Ford City | 3k |
| I | Fountain Valley | 56k |
| I | Frazier Park | 2k |
| I | Fullerton | 135k |
| I | Garden Grove | 167k |
| I | Gardena | 61k |
| I | Glen Avon | 16k |
| I | Glendale | 195k |
| I | Glendora | 52k |
| I | Golden Hills | 9k |
| I | Grand Terrace | 13k |
| I | Hacienda Heights | 54k |
| I | Hawaiian Gardens | 16k |
| I | Hawthorne | 87k |
| I | Hermosa Beach | 20k |
| I | Hesperia | 74k |
| I | Hidden Hills | 2k |
| I | Highgrove | 4k |
| I | Highland | 51k |
| I | Hollywood | 168k |
| I | Home Gardens | 11k |
| I | Huntington Beach | 196k |
| I | Huntington Park | 64k |
| I | Inglewood | 116k |
| I | Irvine | 189k |
| I | Irwindale | 2k |
| I | La Canada Flintridge | 21k |
| I | La Habra | 60k |
| I | La Habra Heights | 6k |
| I | La Mirada | 50k |
| I | La Palma | 16k |
| I | La Puente | 43k |
| I | La Verne | 34k |
| I | Ladera Heights | 7k |
| I | Laguna Beach | 24k |
| I | Laguna Hills | 31k |
| I | Laguna Niguel | 66k |
| I | Laguna Woods | 20k |
| I | Lake Elsinore | 41k |
| I | Lake Forest | 77k |
| I | Lake Los Angeles | 14k |
| I | Lakeland Village | 6k |
| I | Lakewood | 82k |
| I | Lancaster | 130k |
| I | Las Flores | 6k |
| I | Las Flores | 6k |
| I | Lawndale | 33k |
| I | Lebec | 1k |
| I | Lennox | 23k |
| I | Littlerock | 1k |
| I | Loma Linda | 21k |
| I | Lomita | 21k |
| I | Long Beach | 483k |
| I | Los Alamitos | 12k |
| I | Los Angeles | 3,695k |
| I | Los Serranos | 7k |
| I | Lynwood | 72k |
| I | Malibu | 13k |
| I | Malibu Beach | 14k |
| I | Manhattan Beach | 37k |
| I | Maricopa | 1k |
| I | Marina del Rey | 9k |
| I | Mayflower Village | 5k |
| I | Maywood | 29k |
| I | Meiners Oaks | 4k |
| I | Mira Loma | 19k |
| I | Mira Monte | 7k |
| I | Mission Viejo | 96k |
| I | Mojave | 4k |
| I | Monrovia | 38k |
| I | Montclair | 36k |
| I | Montebello | 64k |
| I | Montecito | 11k |
| I | Monterey Park | 63k |
| I | Moorpark | 37k |
| I | Moreno Valley | 169k |
| I | Mountain View Acres | 3k |
| I | Murrieta | 89k |
| I | Muscoy | 10k |
| I | Newport Beach | 79k |
| I | Norco | 27k |
| I | North Edwards | 1k |
| I | North El Monte | 4k |
| I | North Glendale | 203k |
| I | Norwalk | 109k |
| I | Oak Park | 2k |
| I | Oak View | 5k |
| I | Ojai | 8k |
| I | Ontario | 173k |
| I | Orange | 129k |
| I | Oxnard | 170k |
| I | Oxnard Shores | 187k |
| I | Palmdale | 135k |
| I | Palos Verdes Estates | 14k |
| I | Paramount | 57k |
| I | Pasadena | 145k |
| I | Pedley | 13k |
| I | Perris | 46k |
| I | Pico Rivera | 66k |
| I | Pine Mountain Club | 2k |
| 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 | Rancho Cucamonga | 169k |
| I | Rancho Palos Verdes | 43k |
| I | Rancho Santa Margarita | 51k |
| I | Redondo Beach | 68k |
| I | Rialto | 102k |
| I | Riverside | 298k |
| I | Rolling Hills | 2k |
| I | Rolling Hills Estates | 8k |
| I | Rosamond | 19k |
| I | Rosemead | 56k |
| I | Rossmoor | 11k |
| I | Rowland Heights | 52k |
| I | Rubidoux | 32k |
| I | San Antonio Heights | 3k |
| I | San Bernardino | 202k |
| I | San Dimas | 36k |
| I | San Gabriel | 42k |
| I | San Joaquin Hills | 3k |
| I | San Marino | 13k |
| I | Santa Ana | 343k |
| I | Santa Fe Springs | 16k |
| I | Santa Monica | 88k |
| I | Santa Paula | 29k |
| I | Seal Beach | 24k |
| I | Sedco Hills | 3k |
| I | Sierra Madre | 11k |
| I | Signal Hill | 11k |
| I | Simi Valley | 119k |
| I | South El Monte | 22k |
| I | South Gate | 100k |
| I | South Pasadena | 25k |
| I | South San Gabriel | 8k |
| I | South San Jose Hills | 22k |
| I | South Whittier | 59k |
| I | Stallion Springs | 2k |
| I | Stanton | 38k |
| I | Summerland | 2k |
| I | Sunnyslope | 5k |
| I | Taft | 9k |
| I | Taft Heights | 2k |
| I | Tehachapi | 12k |
| I | Temple City | 38k |
| I | Thousand Oaks | 128k |
| I | Toro Canyon | 2k |
| I | Torrance | 145k |
| I | Trabuco Canyon | 3k |
| I | Tustin | 69k |
| I | North Tustin | 24k |
| I | Upland | 74k |
| I | Val Verde | 1k |
| I | Valinda | 24k |
| I | Ventura | 97k |
| I | Victorville | 84k |
| I | Villa Park | 6k |
| I | Vincent | 15k |
| I | Walnut | 32k |
| I | Walnut Park | 17k |
| I | West Athens | 9k |
| I | West Carson | 22k |
| I | West Compton | 6k |
| I | West Covina | 110k |
| I | West Hollywood | 37k |
| I | West Puente Valley | 24k |
| I | Westlake Village | 9k |
| I | Westminster | 90k |
| I | Westmont | 32k |
| I | Westwood | 2k |
| I | Whittier | 86k |
| I | Wildomar | 16k |
| I | Willowbrook | 35k |
| I | Woodcrest | 9k |
| I | Wrightwood | 4k |
| I | Yorba Linda | 65k |
(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.
