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Minor earthquake, 2.81 mag strikes near Ferndale in California



Earthquake location 40.606S, -125.157WA minor earthquake magnitude 2.81 (ml/mb) has occurred on Tuesday, 75 km W of Ferndale, California (47 miles). The epicenter of the earthquake was roughly 10.43 km (6 miles) below the earth’s surface. Global date and time of event UTC/GMT: 21/09/16 / 2016-09-21 05:02:48 / September 21, 2016 @ 5:02 am. Exact location of earthquake, longitude -125.157 West, latitude 40.606 North, depth = 10.43 km. Event id: nc72699991. Ids that are associated to the earthquake: nc72699991. The temblor was detected at 21:02:48 / 9:02 pm (local time epicenter).

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

Did you feel it?

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: 75 km W of Ferndale, California.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -125.157° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 40.606° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10.43 km Depth of the event in kilometers.
Place 75km W of Ferndale, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-09-21 05:02:48 Time when the event occurred. UTC/GMT
Updated 2016-09-23 01:02:02 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 reviewed 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 121 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 35 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.638 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.22 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 277 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 nc72699991 Id of event.
Event Code 72699991 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72699991, A comma-separated list of event ids that are associated to an event.

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