PAGER - M 4.0 - 10.0 km (6.2 mi) ENE of Milpitas, 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, January 7th, 2010 at 18:09:35 UTC (10:09:35 local)Location: 37.5° N, 121.8° WDepth: 11kmEvent Id: NC71336726Alert Version: 2Created: 50 weeks, 4 days 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) | 81 |
| 1 to 9 (YELLOW) | 19 |
| 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) | 65 |
| 1 to 10 million (YELLOW) | 30 |
| 10 to 100 million (YELLOW) | 4 |
| 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 | 2,116k* | 5,387k | 947k | 38k | 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 | 269 | 5.1 | V (18k) | 0 |
| 1989-10-18 | 41 | 6.9 | IX (3k) | 62 |
| 2003-12-22 | 216 | 6.6 | VII (223) | 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 | Milpitas | 63k |
| IV | Seven Trees | 2k |
| IV | East Foothills | 8k |
| IV | Sunol | 1k |
| IV | Fremont | 203k |
| IV | Mountain View | 68k |
| III | San Jose | 895k |
| II | San Francisco | 732k |
| II | Stockton | 290k |
| II | Modesto | 216k |
| I | Oakland | 399k |
(k = x1,000)
| # | Date/Time | Mag | Lat, Lon, Depth | Country | Max MMI (Exposed) | Deaths | Secondary Effects | |
|---|---|---|---|---|---|---|---|---|
| Shaking | Total | |||||||
| 1 | 1975-08-01 20:20 UTC | 5.8 | 39.5° N, 121.39° W 9km | US | VIII (13) | 0 | 0 | |
| 2 | 1978-08-13 22:54 UTC | 5.8 | 34.37° N, 119.65° W 8km | US | VIII (41 k) | 0 | 0 | |
| 3 | 1978-10-04 16:42 UTC | 5.4 | 37.39° N, 118.69° W 8km | US | VI (541) | 0 | 0 | |
| 4 | 1979-08-06 17:05 UTC | 5.7 | 37.07° N, 121.6° W 8km | US | VIII (146) | 0 | 0 | |
| 5 | 1980-01-24 19:00 UTC | 5.8 | 37.71° N, 121.73° W 15km | US | VII (31 k) | 1 | 1 | |
| 6 | 1980-01-27 02:33 UTC | 5.8 | 37.74° N, 121.74° W 15km | US | VI (372 k) | 0 | 0 | |
| 7 | 1980-05-25 16:33 UTC | 6.2 | 37.53° N, 118.84° W 12km | US | IX (64) | 0 | 0 | landslide |
| 8 | 1980-05-25 16:49 UTC | 5.9 | 37.55° N, 119.02° W 3km | US | VIII (16) | 0 | 0 | |
| 9 | 1980-05-25 19:44 UTC | 5.9 | 37.38° N, 118.84° W 5km | US | VII (2) | 0 | 0 | landslide |
| 10 | 1980-05-25 20:35 UTC | 5.9 | 37.44° N, 118.96° W 2km | US | VI (6 k) | 0 | 0 | |
| 11 | 1980-05-25 20:59 UTC | 5.5 | 37.59° N, 118.83° W 10km | US | VII (665) | 0 | 0 | |
| 12 | 1980-05-26 12:24 UTC | 5.6 | 37.58° N, 118.9° W 2km | US | VII (3 k) | 0 | 0 | |
| 13 | 1980-05-26 18:57 UTC | 5.7 | 37.56° N, 118.9° W 6km | US | VII (2 k) | 0 | 0 | |
| 14 | 1980-05-27 14:50 UTC | 5.9 | 37.42° N, 118.8° W 0km | US | VIII (2) | 0 | 0 | |
| 15 | 1981-09-30 11:53 UTC | 5.6 | 37.55° N, 118.8° W 15km | US | VII (579) | 0 | 0 | |
| 16 | 1983-05-02 23:42 UTC | 6.3 | 36.22° N, 120.31° W 10km | US | IX (28) | 0 | 0 | |
| 17 | 1983-05-02 23:46 UTC | 5.7 | 36.23° N, 120.29° W 8km | US | VIII (1 k) | 0 | 0 | |
| 18 | 1983-07-09 07:40 UTC | 5.1 | 36.17° N, 120.37° W 1km | US | VII (10 k) | 0 | 0 | |
| 19 | 1983-07-22 02:39 UTC | 5.7 | 36.2° N, 120.34° W 7km | US | VII (1 k) | 0 | 0 | |
| 20 | 1983-08-24 13:36 UTC | 6.2 | 40.29° N, 124.63° W 22km | US | VII (2 k) | 0 | 0 | |
| 21 | 1984-04-24 21:15 UTC | 6.2 | 37.3° N, 121.71° W 9km | US | VIII (7 k) | 0 | 0 | |
| 22 | 1984-11-23 18:08 UTC | 5.8 | 37.36° N, 118.47° W 10km | US | VIII (9 k) | 0 | 0 | |
| 23 | 1984-11-23 19:12 UTC | 5.5 | 37.44° N, 118.64° W 0km | US | VII (329) | 0 | 0 | |
| 24 | 1984-11-26 16:21 UTC | 5.1 | 37.29° N, 118.76° W 10km | US | V (18 k) | 0 | 0 | landslide |
| 25 | 1985-08-04 12:01 UTC | 6.1 | 36.14° N, 120.11° W 10km | US | IX (718) | 0 | 0 | |
| 26 | 1986-01-26 19:20 UTC | 5.4 | 36.75° N, 121.36° W 6km | US | VII (3 k) | 0 | 0 | |
| 27 | 1986-03-31 11:55 UTC | 5.6 | 37.53° N, 121.59° W 6km | US | VII (136) | 0 | 0 | |
| 28 | 1986-07-20 14:29 UTC | 5.8 | 37.5° N, 118.44° W 15km | US | VIII (7) | 0 | 0 | |
| 29 | 1986-07-21 14:42 UTC | 6.2 | 37.49° N, 118.44° W 10km | US | VIII (330) | 0 | 0 | |
| 30 | 1986-07-21 14:51 UTC | 5.7 | 37.5° N, 118.37° W 9km | US | VIII (234) | 0 | 0 | |
| 31 | 1986-07-21 22:07 UTC | 5.4 | 37.64° N, 118.49° W 6km | US | VII (13) | 0 | 0 | |
| 32 | 1986-07-31 07:22 UTC | 5.5 | 37.46° N, 118.4° W 15km | US | VII (200) | 0 | 0 | |
| 33 | 1987-07-31 23:56 UTC | 6 | 40.39° N, 124.2° W 18km | US | VIII (3) | 0 | 0 | |
| 34 | 1988-06-27 18:43 UTC | 5.7 | 37.13° N, 121.88° W 13km | US | VIII (6) | 0 | 0 | |
| 35 | 1989-08-08 08:13 UTC | 5.4 | 37.13° N, 121.93° W 15km | US | VII (4 k) | 1 | 1 | |
| 36 | 1989-10-18 00:04 UTC | 6.9 | 37.11° N, 121.76° W 16km | US | IX (3 k) | 62 | 63 | landslide, tsunami |
| 37 | 1990-10-24 06:15 UTC | 5.3 | 38.1° N, 119.17° W 15km | US | VII (75) | 0 | 0 | |
| 38 | 1991-08-17 19:29 UTC | 6.1 | 40.25° N, 124.12° W 12km | US | IX (176) | 0 | 0 | |
| 39 | 1992-03-08 03:43 UTC | 5.4 | 40.26° N, 123.97° W 14km | US | VII (43) | 0 | 0 | |
| 40 | 1992-04-25 18:06 UTC | 7.2 | 40.34° N, 124.09° W 15km | US | IX (2 k) | 0 | 0 | landslide, liquefaction, tsunami |
| 41 | 1992-04-26 11:18 UTC | 6.6 | 40.42° N, 124.42° W 22km | US | IX (33) | 0 | 0 | |
| 42 | 1993-05-17 23:20 UTC | 6.1 | 37.14° N, 117.79° W 7km | US | VIII (6) | 0 | 0 | |
| 43 | 1994-09-12 12:23 UTC | 5.9 | 38.86° N, 119.71° W 4km | US | VIII (14 k) | 0 | 0 | |
| 44 | 1995-12-28 18:27 UTC | 5.5 | 38.78° N, 119.55° W 5km | US | VII (2 k) | 0 | 0 | |
| 45 | 1997-01-22 07:17 UTC | 5.7 | 40.21° N, 124.29° W 15km | US | VII (132) | 0 | 0 | |
| 46 | 1998-08-12 14:10 UTC | 5.2 | 36.68° N, 121.53° W 9km | US | VII (1 k) | 0 | 0 | |
| 47 | 1999-05-15 13:22 UTC | 5.5 | 37.45° N, 118.8° W 1km | US | VII (3) | 0 | 0 | |
| 48 | 2000-09-03 08:36 UTC | 5 | 38.38° N, 122.41° W 10km | US | VI (79 k) | 0 | 0 | |
| 49 | 2003-12-22 19:15 UTC | 6.6 | 35.63° N, 121.08° W 16km | US | VII (223) | 2 | 2 | landslide, liquefaction |
| 50 | 2004-09-28 17:15 UTC | 6 | 35.76° N, 120.31° W 1km | US | VII (147) | 0 | 0 | |
| MMI | City | Population |
|---|---|---|
| IV | Milpitas | 63k |
| IV | Seven Trees | 2k |
| IV | East Foothills | 8k |
| IV | Sunol | 1k |
| IV | Fremont | 203k |
| IV | Mountain View | 68k |
| IV | Santa Clara | 102k |
| IV | Alum Rock | 14k |
| IV | Newark | 43k |
| IV | Burbank | 5k |
| III | San Jose | 895k |
| III | Sunnyvale | 127k |
| III | Buena Vista | 2k |
| III | Pleasanton | 67k |
| III | Dublin | 39k |
| III | Cupertino | 51k |
| III | Los Altos | 27k |
| III | Los Altos Hills | 8k |
| III | East Palo Alto | 33k |
| III | West Menlo Park | 4k |
| III | El Granada | 7k |
| III | Union City | 70k |
| III | Stanford | 13k |
| III | Palo Alto | 57k |
| III | Cambrian Park | 3k |
| III | Half Moon Bay | 12k |
| III | San Carlos | 27k |
| III | Portola Valley | 4k |
| III | Loyola | 4k |
| III | Redwood City | 72k |
| III | Campbell | 37k |
| III | Foster City | 29k |
| III | Livermore | 80k |
| III | Emerald Lake Hills | 4k |
| III | Menlo Park | 29k |
| III | Belmont | 24k |
| III | Montara | 3k |
| III | Woodside | 5k |
| III | Moss Beach | 2k |
| III | Tracy | 83k |
| II | Broadmoor | 4k |
| II | Union City | 67k |
| II | Belvedere | 2k |
| II | Lexington Hills | 3k |
| II | Sausalito | 7k |
| II | Boulder Creek | 4k |
| II | Atherton | 7k |
| II | Colma | 1k |
| II | North Fair Oaks | 16k |
| II | South San Francisco | 59k |
| II | Burlingame | 27k |
| II | Daly City | 99k |
| II | Pacifica | 36k |
| II | San Mateo | 90k |
| II | Corte Madera | 9k |
| II | Larkspur | 12k |
| II | Discovery Bay | 12k |
| II | Saratoga | 29k |
| II | Strawberry | 5k |
| II | Los Gatos | 28k |
| II | Monte Sereno | 3k |
| II | Ben Lomond | 3k |
| II | Hillsborough | 10k |
| II | Mill Valley | 13k |
| II | Millbrae | 20k |
| II | Day Valley | 4k |
| II | Hayward | 140k |
| II | Morgan Hill | 35k |
| II | Rio Del Mar | 9k |
| II | Grayson | 1k |
| II | Scotts Valley | 11k |
| II | San Martin | 6k |
| II | Fairview | 10k |
| II | Felton | 1k |
| II | Brentwood | 47k |
| II | Aptos | 10k |
| II | Gilroy | 45k |
| II | Lathrop | 13k |
| II | Interlaken | 8k |
| II | Oakley | 27k |
| II | Patterson | 16k |
| II | San Lorenzo | 23k |
| II | San Francisco | 732k |
| II | Corralitos | 2k |
| II | Bethel Island | 2k |
| II | Capitola | 10k |
| II | San Ramon | 45k |
| II | Soquel | 5k |
| II | Amesti | 3k |
| II | Watsonville | 46k |
| II | Tiburon | 9k |
| II | Cherryland | 16k |
| II | Live Oak | 18k |
| II | Freedom | 6k |
| II | Manteca | 66k |
| II | Ashland | 23k |
| II | Pajaro | 3k |
| II | Santa Cruz | 55k |
| II | Opal Cliffs | 7k |
| II | Twin Lakes | 6k |
| II | French Camp | 5k |
| II | Kentfield | 7k |
| II | Ripon | 14k |
| II | Country Club | 10k |
| II | Salida | 17k |
| II | Riverdale Park | 1k |
| II | San Bruno | 40k |
| II | Santa Venetia | 5k |
| II | Las Lomas | 3k |
| II | Stockton | 290k |
| II | Danville | 43k |
| II | Kennedy | 4k |
| II | San Anselmo | 12k |
| II | Antioch | 106k |
| II | Lincoln Village | 4k |
| II | Diablo | 1k |
| II | Ross | 2k |
| II | San Pablo | 31k |
| II | Newman | 8k |
| II | Novato | 49k |
| II | Shackelford | 6k |
| II | August | 9k |
| II | Modesto | 216k |
| II | Brisbane | 3k |
| II | Castro Valley | 63k |
| II | Garden Acres | 11k |
| II | Bystrom | 5k |
| II | San Rafael | 55k |
| II | Ceres | 40k |
| II | Gustine | 6k |
| II | Aromas | 3k |
| II | Del Rio | 1k |
| II | Elkhorn | 2k |
| II | Alamo | 18k |
| II | Richmond | 103k |
| II | Morada | 4k |
| II | Pittsburg | 63k |
| II | Keyes | 6k |
| II | San Juan Bautista | 2k |
| II | Suisun City | 27k |
| II | Escalon | 7k |
| II | Fairfax | 7k |
| II | Rollingwood | 3k |
| II | Castroville | 8k |
| II | Concord | 126k |
| II | East Richmond Heights | 3k |
| II | Empire | 4k |
| II | Rio Vista | 7k |
| II | Alameda | 70k |
| I | Albany | 16k |
| I | Oakland | 399k |
| I | Benicia | 27k |
| I | Hughson | 7k |
| I | Turlock | 68k |
| I | Clayton | 11k |
| I | Tara Hills | 6k |
| I | Bay Point | 22k |
| I | El Sobrante | 14k |
| I | Lodi | 63k |
| I | San Leandro | 80k |
| I | Waldon | 6k |
| I | Linden | 1k |
| I | Pinole | 20k |
| I | Emeryville | 8k |
| I | Martinez | 37k |
| I | Riverbank | 19k |
| I | Fairfield | 106k |
| I | Marina | 17k |
| I | Prunedale | 23k |
| I | Bolinas | 1k |
| I | Denair | 3k |
| I | Boronda | 1k |
| I | Kensington | 5k |
| I | Hollister | 37k |
| I | Oakdale | 19k |
| I | Woodacre | 1k |
| I | Hercules | 24k |
| I | Delhi | 12k |
| I | Salinas | 149k |
| I | Moraga | 17k |
| I | Mountain View | 2k |
| I | El Cerrito | 23k |
| I | Walnut Creek | 65k |
| I | Rodeo | 9k |
| I | Vine Hill | 3k |
| I | Pleasant Hill | 34k |
| I | Ridgemark | 3k |
| I | Pacheco | 4k |
| I | Los Banos | 33k |
| I | Livingston | 12k |
| I | Berkeley | 100k |
| I | Lockeford | 3k |
| I | Waterford | 9k |
| I | East Oakdale | 3k |
| I | Galt | 24k |
| I | Lafayette | 25k |
| I | Green Valley | 2k |
| I | American Canyon | 16k |
| I | Atwater | 30k |
| I | Boyes Hot Springs | 7k |
| I | Copperopolis | 3k |
| I | Crockett | 3k |
| I | Dos Palos | 5k |
| I | El Verano | 4k |
| I | Inverness | 1k |
| I | Napa | 77k |
| I | Orinda | 18k |
| I | Petaluma | 55k |
| I | Piedmont | 11k |
| I | Rancho Calaveras | 4k |
| I | San Andreas | 3k |
| I | Sonoma | 10k |
| I | South Dos Palos | 2k |
| I | Temelec | 2k |
| I | Vallejo | 120k |
| I | Valley Springs | 3k |
| I | Winton | 10k |
(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.
