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Minor earthquake, 2.83 mag strikes near Cobb in CA

Posted by admin on May 7, 2018 0 Comments

Earthquake location 38.8343315S, -122.7850037WA minor earthquake with magnitude 2.83 (ml/mb) was reported 6 kilometers (4 miles) from Cobb in CA on Monday. Event ids that are associated to the earthquake: nc73012566. Id of event: nc73012566. The epicenter was at a depth of 1.31 km (1 miles). Global date and time of event UTC/GMT: 07/05/18 / 2018-05-07 08:28:18 / May 7, 2018 @ 8:28 am. Exact location of event, longitude -122.7850037 West, latitude 38.8343315 North, depth = 1.31 km. The 2.83-magnitude earthquake has occurred at 00:28:18 / 12:28 am (local time epicenter).

The epicenter was 44 km (27 miles) from Santa Rosa (c. 167 800 pop), 74 km (46 miles) from Napa (c. 76 900 pop), 68 km (42 miles) from Petaluma (c. 57 900 pop), 55 km (34 miles) from Rohnert Park (c. 41 000 pop), 32 km (20 miles) from Windsor (c. 26 800 pop). Nearest cities/city/villages to epicentrum/hypocenter was Napa, Petaluma, Sonoma (min 5000 pop). Nearby country/countries that might be effected, United States (c. 310 233 000 pop).

There are an estimated 1,300,000 minor quakes in the world each year. 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 one, in the past 30 days three and in the last 365 days twenty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 6 km WNW of Cobb, CA.

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More information

Parameter Value Description
Magnitude 2.83 mb The magnitude for the event.
Longitude -122.7850037° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.8343315° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 1.31 km Depth of the event in kilometers.
Place 6km 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 2018-05-07 08:28:18 Time when the event occurred. UTC/GMT
Updated 2018-05-07 08:33:04 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 123 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 51 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.005829 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.07 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 63 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 nc73012566 Id of event.
Event Code 73012566 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc73012566, A comma-separated list of event ids that are associated to an event.

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