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Light earthquake, 4 mag has occurred near Nanwalek in Alaska

Earthquake location 59.341S, -153.02WA light earthquake with magnitude 4 (ml/mb) was detected on Sunday, 62 kilometers (39 miles) from Nanwalek in Alaska. Exact location of earthquake, longitude -153.02 West, latitude 59.341 North, depth = 93 km. The temblor was detected at 02:12:07 / 2:12 am (local time epicenter). A tsunami warning has been issued near Nanwalek in Alaska (Does not indicate if a tsunami actually did or will exist). The epicenter of the earthquake was roughly 93 km (58 miles) below the earth’s surface. Event ids that are associated to the earthquake: at00qfhvg7. Id of event: at00qfhvg7. Exact time and date of earthquake 23/08/20 / 2020-08-23 02:12:07 / August 23, 2020 @ 2:12 am UTC/GMT.

The epicenter was 90 km (56 miles) from Homer (c. 5 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Homer (min 5000 pop). Country/countries that might be effected, United States (c. 310 233 000 pop).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been four, in the last 10 days ten, in the past 30 days sixteen and in the last 365 days seventy-nine earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel it?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 62 km W of Nanwalek, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -153.02° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 59.341° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 93 km Depth of the event in kilometers.
Place 62 km W of Nanwalek, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-08-23 02:12:07 Time when the event occurred. UTC/GMT
Updated 2020-08-23 02:16:14 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 246 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 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2084091 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 75.599993952 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 at00qfhvg7 Id of event.
Event Code 00qfhvg7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qfhvg7, A comma-separated list of event ids that are associated to an event.

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