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Light earthquake: M4.7 quake has struck near Sand Point in Alaska

Posted by admin on December 3, 2020 0 Comments

Earthquake location 54.3904S, -159.7333WA light earthquake with magnitude 4.7 (ml/mb) was detected on Thursday, 116 km SSE of Sand Point, Alaska (72 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 03/12/20 / 2020-12-03 01:08:43 / December 3, 2020 @ 1:08 am UTC/GMT. The epicenter was at a depth of 25.76 km (16 miles). Unique identifier: us7000cmbw. Ids that are associated to the event: us7000cmbw. Exact location of earthquake, longitude -159.7333 West, latitude 54.3904 North, depth = 25.76 km. The temblor was detected at 01:08:43 / 1:08 am (local time epicenter).

In the past 24 hours, there have been one, in the last 10 days four, in the past 30 days ninety-three and in the last 365 days one thousand, two hundred and thirteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Questions or comments?

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: 116 km SSE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -159.7333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.3904° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.76 km Depth of the event in kilometers.
Place 116 km SSE 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 2020-12-03 01:08:43 Time when the event occurred. UTC/GMT
Updated 2020-12-03 01:24:20 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 2.2 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 340 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, 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 0.449 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 162 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000cmbw Id of event.
Event Code 7000cmbw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000cmbw, A comma-separated list of event ids that are associated to an event.

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