Minor earthquake, 2.91 mag has occurred near Sonoma in California

A minor earthquake magnitude 2.91 (ml/mb) has occurred on Monday, 7 kilometers (4 miles) from Sonoma in California. Exact location of event, depth 8.68 km, -122.3988342° West, 38.3438339° North. Date and time of earthquake in UTC/GMT: 07/09/15 / 2015-09-07 14:35:57 / September 7, 2015 @ 2:35 pm. The epicenter of the earthquake was roughly 8.68 km (5 miles) below the earth’s surface. The temblor was picked up at 07:35:57 / 7:35 am (local time epicenter). Event id: nc72521361. Ids that are associated to the earthquake: nc72521361.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Brentwood, South San Francisco, Ashland. Epicenter of the earthquake was 63 km (39 miles) from San Francisco (c. 805 200 pop), 61 km (38 miles) from Oakland (c. 390 700 pop), 30 km (18 miles) from Santa Rosa (c. 167 800 pop), 52 km (32 miles) from Concord (c. 122 100 pop), 29 km (18 miles) from Vallejo (c. 115 900 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days four and in the last 365 days thirty-three earthquakes of magnitude 3.0 or greater that was reported nearby. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 7 km NE of Sonoma, California.

More information

Parameter	Value	Description
Magnitude	2.91 mb	The magnitude for the event.
Longitude	-122.3988342° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	38.3438339° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	8.68 km	Depth of the event in kilometers.
Place	7km NE of Sonoma, California	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2015-09-07 14:35:57	Time when the event occurred. UTC/GMT
Updated	2015-09-07 14:38:59	Time when the event was most recently updated. UTC/GMT
Timezone offset	-420	Timezone offset from UTC in minutes at the event epicenter.
Felt	0	The total number of felt reports
CDI	1	The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	automatic	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	130	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	nc	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,nc,	A comma-separated list of network contributors.
Number of Stations Used	59	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.04686	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.12 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	106	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	nc72521361	Id of event.
Event Code	72521361	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,nc72521361,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 2.91 mag has occurred near Sonoma in California

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