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Minor World Earthquakes Magnitude -3.9

Minor earthquake: M3.6 quake has struck near Sand Point in Alaska

Posted by admin on October 31, 2020 0 Comments

Earthquake location 54.2177S, -159.586WA minor earthquake magnitude 3.6 (ml/mb) has occurred on Wednesday, 137 km SSE of Sand Point, Alaska (85 miles). The 3.6-magnitude earthquake was detected at 23:26:43 / 11:26 pm (local time epicenter). Exact location of event, longitude -159.586 West, latitude 54.2177 North, depth = 24.93 km. The earthquake occurred at a depth of 24.93 km (15 miles). Global date and time of event UTC/GMT: 21/10/20 / 2020-10-21 23:26:43 / October 21, 2020 @ 11:26 pm. Event ids that are associated to the earthquake: ak020dk9e0gf, us7000c6bn. Id of event: us7000c6bn.

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been one hundred and twenty-nine, in the last 10 days three hundred and eighty-eight, in the past 30 days four hundred and three and in the last 365 days six hundred and fifty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 130,000 minor earthquakes in the world.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. 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: 137 km SSE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 3.6 mb The magnitude for the event.
Longitude -159.586° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.2177° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.93 km Depth of the event in kilometers.
Place 137 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 2020-10-21 23:26:43 Time when the event occurred. UTC/GMT
Updated 2020-10-31 00:03:36 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 199 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 ,ak,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 0.614 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.54 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 200 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000c6bn Id of event.
Event Code 7000c6bn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020dk9e0gf,us7000c6bn, A comma-separated list of event ids that are associated to an event.

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