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Minor earthquake, 3.4 mag strikes near Sand Point in Alaska

Earthquake location 54.2847S, -159.5675WA minor earthquake with magnitude 3.4 (ml/mb) was reported 131 km SSE of Sand Point, Alaska (81 miles) on Tuesday. The temblor was reported at 02:21:24 / 2:21 am (local time epicenter). The epicenter was at a depth of 24.17 km (15 miles). Event id: us7000c87c. Ids that are associated to the earthquake: ak020di9bgf5, us7000c87c. Exact time and date of event in UTC/GMT: 20/10/20 / 2020-10-20 02:21:24 / October 20, 2020 @ 2:21 am. Exact location of event, longitude -159.5675 West, latitude 54.2847 North, depth = 24.17 km.

In the past 24 hours, there have been six hundred and seventy-nine, in the last 10 days six hundred and seventy-nine, in the past 30 days six hundred and ninety-five and in the last 365 days nine hundred and sixty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor quakes in the world.

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 131 km SSE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 3.4 mb The magnitude for the event.
Longitude -159.5675° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.2847° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.17 km Depth of the event in kilometers.
Place 131 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 2020-10-20 02:21:24 Time when the event occurred. UTC/GMT
Updated 2020-11-13 04:10:05 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 178 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 0.547 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.88 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 212 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 us7000c87c Id of event.
Event Code 7000c87c An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak020di9bgf5,us7000c87c, A comma-separated list of event ids that are associated to an event.

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