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Minor earthquake, 2.83 mag strikes near Cobb in California

Posted by admin on January 21, 2017 0 Comments

Earthquake location 38.8338318S, -122.8066635WA minor earthquake with magnitude 2.83 (ml/mb) was reported 7 kilometers (4 miles) from Cobb in California on Saturday. The 2.83-magnitude earthquake was detected at 00:16:11 / 12:16 am (local time epicenter). Exact location, longitude -122.8066635° West, latitude 38.8338318° North, depth = 1.64 km. Event id: nc72754525. Ids that are associated to the earthquake: nc72754525. The earthquake was roughly at a depth of 1.64 km (1 miles). Date and time of earthquake in UTC/GMT: 21/01/17 / 2017-01-21 08:16:11 / January 21, 2017 @ 8:16 am.

Close country/countries, United States (c. 310 233 000 pop) (That might be effected). Earthquake epicenter was 44 km (28 miles) from Santa Rosa (c. 167 800 pop), 75 km (47 miles) from Napa (c. 76 900 pop), 68 km (43 miles) from Petaluma (c. 57 900 pop), 56 km (35 miles) from Rohnert Park (c. 41 000 pop), 32 km (20 miles) from Windsor (c. 26 800 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Napa, Petaluma, Sonoma.

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been 0, in the last 10 days 0, in the past 30 days one and in the last 365 days fourty-six earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 1,300,000 minor earthquakes in the world.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 7 km W of Cobb, California.

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More information

Parameter Value Description
Magnitude 2.83 mb The magnitude for the event.
Longitude -122.8066635° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.8338318° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.64 km Depth of the event in kilometers.
Place 7km W of Cobb, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-01-21 08:16:11 Time when the event occurred. UTC/GMT
Updated 2017-01-21 08:21:58 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2 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 124 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 44 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.01076 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 47 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 nc72754525 Id of event.
Event Code 72754525 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72754525, A comma-separated list of event ids that are associated to an event.

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