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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 138 km SSE of Sand Point, Alaska

Posted by admin on October 27, 2020 0 Comments

Earthquake location 54.1291S, -159.9659WA light earthquake magnitude 4.6 (ml/mb) has struck on Wednesday, 138 km SSE of Sand Point, Alaska (86 miles). Global date and time of event UTC/GMT: 21/10/20 / 2020-10-21 18:59:44 / October 21, 2020 @ 6:59 pm. Event id: us6000cawx. Ids that are associated to the earthquake: us6000cawx. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. The 4.6-magnitude earthquake has occurred at 18:59:44 / 6:59 pm (local time epicenter). Exact location of earthquake, longitude -159.9659 West, latitude 54.1291 North, depth = 10 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 138 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 4.6 mb The magnitude for the event.
Longitude -159.9659° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.1291° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 138 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 18:59:44 Time when the event occurred. UTC/GMT
Updated 2020-10-27 13:47:33 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 326 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 0.736 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 237 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 us6000cawx Id of event.
Event Code 6000cawx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000cawx, A comma-separated list of event ids that are associated to an event.

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