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Minor earthquake: M2.68 quake strikes near Concord in California


Earthquake location 37.9835014S, -122.0521698WA minor earthquake magnitude 2.68 (mg/mb) was reported Thursday, 1 kilometers (1 miles) from Concord in California. The temblor was reported at 03:46:32 / 3:46 am (local time epicenter) at a depth of 17.22 km (11 miles). Global time of event 2014-11-20 11:46:32 UTC/GMT. A tsunami warning has not been issued, according to the U.S. Geological Survey. Exact location of event, longitude -122.0521698 West, latitude 37.9835014 North, depth 17.22 km.

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Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about quake recorded in: 1 km WNW of Concord, California.


More information

Parameter Value Description
Magnitude 2.68 mb The magnitude for the event.
Longitude -122.0521698° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 37.9835014° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.22 km Depth of the event in kilometers.
Place 1km WNW of Concord, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2014-11-20 11:46:32 Time when the event occurred. UTC/GMT
Updated 2014-11-20 11:48:33 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 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 110 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 63 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.05191 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 68 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 nc72350241 Id of event.
Event Code 72350241 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS nc72350241 A comma-separated list of event ids that are associated to an event.

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