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Moderate earthquake 5.1 mag, 64 km E of Sand Point, Alaska


Earthquake location 55.282S, -159.48WA moderate earthquake with magnitude 5.1 (ml/mb) was reported 64 km E of Sand Point, Alaska (40 miles) on Thursday. A tsunami warning has been issued near Sand Point in Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -159.48° West, 55.282° North, depth 21 km. Event ids that are associated to the earthquake: at00qdx5mf. Id of event: at00qdx5mf. The temblor was reported at 11:08:39 / 11:08 am (local time epicenter). The epicenter was at a depth of 21 km (13 miles). Global time and date of event 23/07/20 / 2020-07-23 11:08:39 / July 23, 2020 @ 11:08 am UTC/GMT.

Each year there are an estimated 1320 moderate quakes in the world. In the past 24 hours, there have been thirty-one, in the last 10 days sixty, in the past 30 days sixty-two and in the last 365 days ninety-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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: 64 km E of Sand Point, Alaska.

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More information

Parameter Value Description
Magnitude 5.1 mb The magnitude for the event.
Longitude -159.48° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.282° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21 km Depth of the event in kilometers.
Place 64 km E 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 2020-07-23 11:08:39 Time when the event occurred. UTC/GMT
Updated 2020-07-23 11:13:57 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 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 400 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 77 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5731252 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 176.399985888 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type Ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00qdx5mf Id of event.
Event Code 00qdx5mf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qdx5mf, A comma-separated list of event ids that are associated to an event.

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