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Major earthquake, 7.5 mag strikes near Sand Point in Alaska

Earthquake location 54.662S, -159.6752WA major earthquake magnitude 7.5 (ml/mb) has occurred on Monday, 91 km SE of Sand Point, Alaska (57 miles). The epicenter was at a depth of 40.12 km (25 miles). Global time and date of event 19/10/20 / 2020-10-19 20:54:40 / October 19, 2020 @ 8:54 pm UTC/GMT. Unique identifier: us6000c9hg. Ids that are associated to the event: at00qigvf4, us6000c9hg, pt20293005, ak020dgwp0mk. A tsunami warning has been issued near Sand Point in Alaska (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 20:54:40 / 8:54 pm (local time epicenter). Exact location, longitude -159.6752° West, latitude 54.662° North, depth = 40.12 km.

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

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 91 km SE of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 7.5 mb The magnitude for the event.
Longitude -159.6752° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.662° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 40.12 km Depth of the event in kilometers.
Place 91 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 21:18:27 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 43 The total number of felt reports
CDI 7.1 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 896 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 ,at,us,pt,ak, 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 0.176 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.75 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 52 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mww The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us6000c9hg Id of event.
Event Code 6000c9hg An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qigvf4,us6000c9hg,pt20293005,ak020dgwp0mk, A comma-separated list of event ids that are associated to an event.

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