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Major earthquake, 7.4 mag strikes near Sand Point in Alaska

Posted by admin on October 19, 2020 0 Comments

Earthquake location 54.665S, -159.608WA major earthquake magnitude 7.4 (ml/mb) strikes 94 km SE of Sand Point, Alaska (58 miles) on Monday. The epicenter was at a depth of 41 km (25 miles). Exact location, longitude -159.608° West, latitude 54.665° North, depth = 41 km. Global date and time of event UTC/GMT: 19/10/20 / 2020-10-19 20:54:40 / October 19, 2020 @ 8:54 pm. Event ids that are associated to the earthquake: at00qigvf4, pt20293005. Id of event: pt20293005. A tsunami warning has been issued near Sand Point in Alaska (Does not indicate if a tsunami actually did or will exist). The 7.4-magnitude earthquake was detected at 20:54:40 / 8:54 pm (local time epicenter).

There are an estimated 15 major quakes in the world each year. Earthquakes 7.0 to 7.9 may cause serious damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days fifteen and in the last 365 days three hundred and twenty-eight earthquakes of magnitude 3.0 or greater that has occurred nearby.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 94 km SE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 7.4 mb The magnitude for the event.
Longitude -159.608° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.665° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 41 km Depth of the event in kilometers.
Place 94 km SE 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 2020-10-19 20:54:40 Time when the event occurred. UTC/GMT
Updated 2020-10-19 21:10:16 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 39 The total number of felt reports
CDI 4.6 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 1 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 860 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pt The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,pt, A comma-separated list of network contributors.
Number of Stations Used 14 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 197.99998416 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Mi The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pt20293005 Id of event.
Event Code 20293005 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qigvf4,pt20293005, A comma-separated list of event ids that are associated to an event.

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