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Light earthquake 4.2 mag, 118 km SSE of Sand Point, Alaska

Posted by admin on October 31, 2020 0 Comments

Earthquake location 54.3886S, -159.6699WA light earthquake with magnitude 4.2 (ml/mb) was detected on Saturday, 118 km SSE of Sand Point, Alaska (73 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -159.6699 West, latitude 54.3886 North, depth = 27.41 km. Date and time of earthquake in UTC/GMT: 31/10/20 / 2020-10-31 04:46:51 / October 31, 2020 @ 4:46 am. The earthquake was roughly at a depth of 27.41 km (17 miles). Event ids that are associated to the earthquake: us7000c8j8. Id of event: us7000c8j8. The temblor was picked up at 04:46:51 / 4:46 am (local time epicenter).

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

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. 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: 118 km SSE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -159.6699° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.3886° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 27.41 km Depth of the event in kilometers.
Place 118 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 2020-10-31 04:46:51 Time when the event occurred. UTC/GMT
Updated 2020-10-31 04:56:02 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 271 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 0.445 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 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 mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us7000c8j8 Id of event.
Event Code 7000c8j8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000c8j8, A comma-separated list of event ids that are associated to an event.

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