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Light earthquake: M4.1 quake has struck near Sand Point in Alaska

Posted by admin on October 22, 2020 0 Comments

Earthquake location 54.331S, -159.7591WA light earthquake with magnitude 4.1 (ml/mb) was reported 121 km SSE of Sand Point, Alaska (75 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 04:42:19 / 4:42 am (local time epicenter). Exact time and date of event in UTC/GMT: 20/10/20 / 2020-10-20 04:42:19 / October 20, 2020 @ 4:42 am. Exact location, longitude -159.7591° West, latitude 54.331° North, depth = 26.36 km. The earthquake occurred at a depth of 26.36 km (16 miles) below the earth’s surface. Event ids that are associated to the earthquake: us6000c9uv. Id of event: us6000c9uv.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one hundred and ten, in the last 10 days one hundred and ten, in the past 30 days one hundred and twenty-five and in the last 365 days four hundred and four earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel the quake?

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: 121 km SSE of Sand Point, Alaska. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -159.7591° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.331° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 26.36 km Depth of the event in kilometers.
Place 121 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 04:42:19 Time when the event occurred. UTC/GMT
Updated 2020-10-22 00:50:02 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 259 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 0.51 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 91 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 us6000c9uv Id of event.
Event Code 6000c9uv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c9uv, A comma-separated list of event ids that are associated to an event.

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