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Minor earthquake, 2.81 mag has occurred near Westhaven-Moonstone in California


Earthquake location 41.2123333S, -124.435WA minor earthquake with magnitude 2.81 (ml/mb) was detected on Sunday, 33 kilometers (21 miles) from Westhaven-Moonstone in California. Exact time and date of event in UTC/GMT: 09/04/17 / 2017-04-09 23:41:39 / April 9, 2017 @ 11:41 pm. The 2.81-magnitude earthquake has occurred at 15:41:39 / 3:41 pm (local time epicenter). The earthquake occurred at a depth of 15.26 km (9 miles) below the earth’s surface. Exact location of earthquake, longitude -124.435 West, latitude 41.2123333 North, depth = 15.26 km. Id of earthquake: nc72786936. Event ids that are associated: nc72786936.

Epicenter of the earthquake was 51 km (32 miles) from Eureka (c. 27 200 pop), 48 km (30 miles) from Arcata (c. 17 200 pop), 52 km (32 miles) from Bayside (c. 17 100 pop), 41 km (25 miles) from McKinleyville (c. 15 200 pop), 72 km (45 miles) from Fortuna (c. 11 900 pop). Country/countries that might be effected, United States (c. 310 233 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Fortuna, Crescent City, Bayside (min 5000 pop).

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

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 33 km NW of Westhaven-Moonstone, California. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -124.435° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.2123333° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 15.26 km Depth of the event in kilometers.
Place 33km NW of Westhaven-Moonstone, California Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-04-09 23:41:39 Time when the event occurred. UTC/GMT
Updated 2017-04-10 22:36:04 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 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 29 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4998 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 218 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 nc72786936 Id of event.
Event Code 72786936 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,nc72786936, A comma-separated list of event ids that are associated to an event.

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