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Minor earthquake, 3.4 mag has occurred near Sand Point in Alaska

Earthquake location 55.4236S, -160.6965WA minor earthquake magnitude 3.4 (ml/mb) has struck on Wednesday, 15 km NW of Sand Point, Alaska (9 miles). Exact location of event, longitude -160.6965 West, latitude 55.4236 North, depth = 76.1 km. Id of earthquake: ak20386841. Event ids that are associated: ak20386841. The temblor was reported at 13:12:16 / 1:12 pm (local time epicenter). The epicenter was at a depth of 76.1 km (47 miles). Exact time and date of event in UTC/GMT: 21/11/18 / 2018-11-21 22:12:16 / November 21, 2018 @ 10:12 pm.

Earthquakes 2.5 to 3.5 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 ten and in the last 365 days seventy-four earthquakes of magnitude 3.0 or greater that was reported nearby. Each year there are an estimated 130,000 minor quakes in the world.

Questions or comments?

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. 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: 15 km NW of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -160.6965° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.4236° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 76.1 km Depth of the event in kilometers.
Place 15km NW of Sand Point, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-21 22:12:16 Time when the event occurred. UTC/GMT
Updated 2018-12-03 00:45:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 178 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.63 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak20386841 Id of event.
Event Code 20386841 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak20386841, A comma-separated list of event ids that are associated to an event.

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