M 6.1 in United States on 24 Aug 2014 10:20 UTC
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.1M
Depth: 10.75 Km
Lat/Lon: 38.21 , -122.32
Event Date: 24 Aug 2014 10:20 UTC
24 Aug 2014 03:20 Local
Exposed Population: 7688843 people within 100km
Source: NEIC
Inserted at: 24 Aug 2014 11:15 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.9 0.9
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1058569 0.9 24 Aug 2014 10:20 6.1M, 9km N/A 8 million (in 100km) 00:04 USGS
1058570 0.7 24 Aug 2014 10:20 5.7M, 10.8km N/A 7.7 million (in 100km) 00:04 USGS
1058572 0.9 24 Aug 2014 10:20 6M, 10.8km N/A 7.7 million (in 100km) 00:09 NEIC
1058573 0.9 24 Aug 2014 10:20 6.1M, 10.75km N/A 7.7 million (in 100km) 00:54 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in United States ,of California (population 79,174) . The alertlevel for this event is Orange

Intensity Population
79000 people
48000 people
160000 people
370000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1058572 38.21/-122.32 6 10.8 0 17 Oct 2016 10:09 784d 23:48 (new episode)

Affected Provinces

Intensity Region Province Country Population
California United States 79000 people
California United States 47000 people
California United States 120000 people
California United States 360000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Napa California United States Village 73000 people 11 km
American Canyon California United States Village 9800 people 7 km
Vallejo California United States City 120000 people 14 km
Sonoma California United States Village 9100 people 18 km
El Verano California United States Village 4000 people 18 km
Selby California United States Village - 18 km
Rodeo California United States Village 8700 people 20 km
Green Valley California United States Village 1900 people 15 km
Black Point California United States Village - 20 km
Benicia California United States Village 27000 people 21 km
Pinole California United States Village 19000 people 22 km
Hercules California United States Village 19000 people 23 km
Tara Hills California United States Village 5300 people 24 km
Fairfield California United States Village 96000 people 25 km
El Sobrante California United States Village 12000 people 26 km
Suisun Stadt California United States Village 26000 people 27 km
Suisun City California United States Village 26000 people 27 km
Petaluma California United States Village 55000 people 28 km
Martinez California United States Village 36000 people 29 km
Vine Hill California United States Village 3300 people 29 km
Maltby California United States Village - 31 km
Port Chicago California United States Village - 32 km
Rohnert Park California United States Village 42000 people 36 km
Cotati California United States Village 6500 people 37 km
South Santa Rosa California United States Village 8300 people 42 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Napa County APC 10 Civ. Paved Yes 5900 3 km
Sonoma Skypark 6 0 11 km
Sonoma Valley 3 0 11 km
Vallejo VLO unknown 0 13 km
Garibaldi Brothers 6 0 18 km
River Meadow Farm 45 0 29 km
Gnoss Field NOT 0 Civ. Paved Yes 3300 22 km
Hamilton AAF 1 0 23 km
Petaluma Municipal 27 0 26 km
Moskowite 274 0 29 km
Graywood Ranch 137 0 33 km
St. Helena Fire Dept. 94 0 41 km
Virgil O Parrett Field 563 0 42 km

Ports

Intensity Name LOCODE Country Distance
Vallejo USVLO Wake Island 15 km
Benicia USBNC Wake Island 22 km
Martinez USMRZ Wake Island 26 km

Dams

Intensity Reservoir Dam Name River Year Distance
Lake Curry Gordon Valley Creek 1926 24 km
Hennessey Conn Creek Conn Creek 1946 31 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.