PAGER - M 3.5 - 8.5 mi WNW of Borrego Springs, 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?Wednesday, September 22nd, 2010 at 07:18:57 UTC (00:18:57 local)Location: 33.3° N, 116.5° WDepth: 22kmEvent Id: CI14845884Alert Version: 1Created: 10 hours, 16 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 FATALITIES (LEVEL) | Probability (%) |
|---|---|
| 0 (GREEN) | 90 |
| 1 to 9 (YELLOW) | 9 |
| 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) | 90 |
| 1 to 10 million (YELLOW) | 9 |
| 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 | 8,783k | 6 | 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 |
|---|---|---|---|---|
| 1986-07-13 | 129 | 5.8 | V (10m) | 0 |
| 1991-06-28 | 173 | 5.6 | VII (8k) | 1 |
| 1994-01-17 | 213 | 6.7 | IX (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.
| MMI | City | Population |
|---|---|---|
| I | Tijuana | 1,376k |
| I | San Diego | 1,223k |
| I | Mexicali | 597k |
| I | Riverside | 298k |
| I | Chula Vista | 213k |
| I | San Bernardino | 202k |
| I | Ontario | 173k |
| I | Fontana | 169k |
| I | Moreno Valley | 169k |
| I | Rancho Cucamonga | 169k |
| I | Oceanside | 161k |
(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 | 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 10:14 UTC | 5.7 | 36.77° N, 116.32° W 11km | US | VIII (127) | 0 | 0 | |
| 29 | 1992-06-29 16:01 UTC | 5.5 | 33.82° N, 116.44° W 15km | US | VIII (8 k) | 0 | 0 | |
| 30 | 1992-07-11 18:14 UTC | 5.7 | 34.96° N, 118.19° W 15km | US | VIII (568) | 0 | 0 | |
| 31 | 1992-11-27 16:00 UTC | 5.6 | 34.23° N, 117.01° W 5km | US | VII (4 k) | 0 | 0 | |
| 32 | 1994-01-17 12:30 UTC | 6.7 | 34.16° N, 118.58° W 11km | US | IX (181 k) | 33 | 33 | landslide, liquefaction |
| 33 | 1994-01-17 23:33 UTC | 5.8 | 34.27° N, 118.79° W 8km | US | VIII (70 k) | 0 | 0 | |
| 34 | 1994-01-18 00:43 UTC | 5.5 | 34.26° N, 118.89° W 17km | US | VII (97 k) | 0 | 0 | |
| 35 | 1995-09-20 23:27 UTC | 5.5 | 35.63° N, 117.73° W 15km | US | VIII (852) | 0 | 0 | |
| 36 | 1999-10-16 09:46 UTC | 7.1 | 34.52° N, 116.44° W 5km | US | IX (17 k) | 0 | 0 | |
| 37 | 1999-10-16 09:59 UTC | 5.8 | 34.56° N, 116.79° W 9km | US | VIII (19) | 0 | 0 | |
| 38 | 1999-10-16 12:57 UTC | 5.7 | 34.27° N, 116.23° W 12km | US | VIII (201) | 0 | 0 | |
| 39 | 2001-12-08 23:36 UTC | 5.7 | 32.05° N, 114.9° W 9km | MX | VIII (72) | 0 | 0 | |
| 40 | 2002-02-22 19:32 UTC | 5.5 | 32.38° N, 115.19° W 9km | MX | VIII (8 k) | 0 | 0 | |
| 41 | 2005-06-16 20:53 UTC | 4.9 | 33.95° N, 117.05° W 18km | US | VI (63 k) | 0 | 0 | |
| MMI | City | Population |
|---|---|---|
| I | Progreso | 5k |
| I | Tijuana | 1,376k |
| I | Tecate | 58k |
| I | Mexicali | 597k |
| I | Puebla | 9k |
| I | Aliso Viejo | 41k |
| I | Alpine | 15k |
| I | Banning | 30k |
| I | Beaumont | 19k |
| I | Bermuda Dunes | 7k |
| I | Bloomington | 22k |
| I | Bonita | 13k |
| I | Bonsall | 5k |
| I | Borrego Springs | 3k |
| I | Bostonia | 16k |
| I | Brawley | 22k |
| I | Cabazon | 3k |
| I | Calexico | 36k |
| I | Calipatria | 8k |
| I | Calimesa | 8k |
| I | Canyon Lake | 12k |
| I | Carlsbad | 78k |
| I | Cathedral City | 53k |
| I | Cherry Valley | 6k |
| I | Chino | 75k |
| I | Chino Hills | 67k |
| I | Chula Vista | 213k |
| I | Claremont | 35k |
| I | Coachella | 31k |
| I | Colton | 52k |
| I | Corona | 153k |
| I | Coronado | 24k |
| I | Coto De Caza | 19k |
| I | Crest | 3k |
| I | Dana Point | 36k |
| I | Del Mar | 4k |
| I | Desert Hot Springs | 19k |
| I | East Hemet | 14k |
| I | El Cajon | 95k |
| I | El Centro | 38k |
| I | El Cerrito | 5k |
| I | Encinitas | 58k |
| I | Escondido | 137k |
| I | Fallbrook | 34k |
| I | Fontana | 169k |
| I | Foothill Ranch | 12k |
| I | Glen Avon | 16k |
| I | Grand Terrace | 13k |
| I | Granite Hills | 3k |
| I | Harbison Canyon | 5k |
| I | Heber | 3k |
| I | Hemet | 69k |
| I | Hidden Meadows | 4k |
| I | Highgrove | 4k |
| I | Highland | 51k |
| I | Holtville | 5k |
| I | Home Gardens | 11k |
| I | Homeland | 4k |
| I | Imperial | 10k |
| I | Imperial Beach | 27k |
| I | Indian Wells | 4k |
| I | Indio | 66k |
| I | Jamul | 8k |
| I | Joshua Tree | 4k |
| I | Julian | 2k |
| I | La Mesa | 54k |
| I | La Presa | 35k |
| I | La Quinta | 38k |
| I | Laguna Hills | 31k |
| I | Laguna Niguel | 66k |
| I | Laguna Woods | 20k |
| I | Lake Elsinore | 41k |
| I | Lake Forest | 77k |
| I | Lake San Marcos | 4k |
| I | Lakeland Village | 6k |
| I | Lakeside | 19k |
| I | Lakeview | 2k |
| I | Las Flores | 6k |
| I | Lemon Grove | 25k |
| I | Loma Linda | 21k |
| I | Los Serranos | 7k |
| I | Mecca | 7k |
| I | Mentone | 9k |
| I | Mira Loma | 19k |
| I | Mission Viejo | 96k |
| I | Montclair | 36k |
| I | Moreno Valley | 169k |
| I | Morongo Valley | 2k |
| I | Murrieta | 89k |
| I | Murrieta Hot Springs | 4k |
| I | National City | 62k |
| I | Niland | 1k |
| I | Norco | 27k |
| I | Nuevo | 5k |
| I | Oceanside | 161k |
| I | Ontario | 173k |
| I | Palm Desert | 49k |
| I | Palm Springs | 43k |
| I | Pedley | 13k |
| I | Perris | 46k |
| I | Pine Valley | 2k |
| I | Portola Hills | 9k |
| I | Poway | 48k |
| I | Quail Valley | 2k |
| I | Rainbow | 2k |
| I | Ramona | 17k |
| I | Rancho Cucamonga | 169k |
| I | Rancho Mirage | 17k |
| I | Rancho San Diego | 28k |
| I | Rancho Santa Fe | 3k |
| I | Rancho Santa Margarita | 51k |
| I | Redlands | 70k |
| I | Rialto | 102k |
| I | Riverside | 298k |
| I | Romoland | 3k |
| I | Rubidoux | 32k |
| I | Salton City | 1k |
| I | San Bernardino | 202k |
| I | San Clemente | 62k |
| I | San Diego | 1,223k |
| I | San Diego Country Estates | 11k |
| I | San Jacinto | 29k |
| I | San Juan Capistrano | 35k |
| I | San Marcos | 70k |
| I | Santee | 53k |
| I | Sedco Hills | 3k |
| I | Seeley | 2k |
| I | Solana Beach | 13k |
| I | Spring Valley | 26k |
| I | Sun City | 20k |
| I | Sunnyslope | 5k |
| I | Temecula | 85k |
| I | Thousand Palms | 6k |
| I | Trabuco Canyon | 3k |
| I | Twentynine Palms | 23k |
| I | Upland | 74k |
| I | Valle Vista | 12k |
| I | Valley Center | 10k |
| I | Vista | 93k |
| I | Westmorland | 2k |
| I | Wildomar | 16k |
| I | Winchester | 2k |
| I | Winter Gardens | 21k |
| I | Woodcrest | 9k |
| I | Yucaipa | 50k |
| I | Yucca Valley | 19k |
(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.
