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Minor earthquake, 2.88 mag was detected near Cobb in CA

Earthquake location 38.8409996S, -122.8303299WA minor earthquake magnitude 2.88 (ml/mb) has struck on Thursday, 10 kilometers (6 miles) from Cobb in CA. Exact time and date of earthquake 22/02/18 / 2018-02-22 08:04:14 / February 22, 2018 @ 8:04 am UTC/GMT. Exact location of event, longitude -122.8303299 West, latitude 38.8409996 North, depth = 1.74 km. The epicenter of the earthquake was roughly 1.74 km (1 miles) below the earth’s surface. The temblor was reported at 00:04:14 / 12:04 am (local time epicenter). All ids that are associated to the event: nc72973756. Unique identifier: nc72973756.

Close country/countries that might be effected, United States (c. 310 233 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Napa, Petaluma, Sonoma (min 5000 pop). Event epicenter was 46 km (28 miles) from Santa Rosa (c. 167 800 pop), 77 km (48 miles) from Napa (c. 76 900 pop), 70 km (43 miles) from Petaluma (c. 57 900 pop), 57 km (35 miles) from Rohnert Park (c. 41 000 pop), 33 km (20 miles) from Windsor (c. 26 800 pop).

In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days two and in the last 365 days twenty-five earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. There are an estimated 1,300,000 minor earthquakes in the world each year.

Questions or comments?

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: 10 km WNW of Cobb, CA.

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More information

Parameter Value Description
Magnitude 2.88 mb The magnitude for the event.
Longitude -122.8303299° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.8409996° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.74 km Depth of the event in kilometers.
Place 10km WNW of Cobb, CA Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-22 08:04:14 Time when the event occurred. UTC/GMT
Updated 2018-02-22 08:07:01 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI 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 128 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 37 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.004692 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 57 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 nc72973756 Id of event.
Event Code 72973756 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72973756, A comma-separated list of event ids that are associated to an event.

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