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Moderate earthquake 5.4 mag, 113 km SSE of Perryville, Alaska


Earthquake location 54.9667S, -158.4545WA moderate earthquake magnitude 5.4 (ml/mb) has occurred on Saturday, 113 km SSE of Perryville, Alaska (70 miles). The temblor was detected at 12:52:59 / 12:52 pm (local time epicenter). The earthquake occurred at a depth of 20.57 km (13 miles) below the earth’s surface. Exact location, longitude -158.4545° West, latitude 54.9667° North, depth = 20.57 km. A tsunami warning has been issued near Perryville in Alaska (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 08/08/20 / 2020-08-08 12:52:59 / August 8, 2020 @ 12:52 pm. Unique identifier: us6000bb42. Ids that are associated to the event: at00qeqx49, us6000bb42.

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate quakes in the world each year. In the past 24 hours, there have been two, in the last 10 days twelve, in the past 30 days ninety-four and in the last 365 days one hundred and thirty earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 113 km SSE of Perryville, Alaska.

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More information

Parameter Value Description
Magnitude 5.4 mb The magnitude for the event.
Longitude -158.4545° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.9667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.57 km Depth of the event in kilometers.
Place 113 km SSE of Perryville, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-08-08 12:52:59 Time when the event occurred. UTC/GMT
Updated 2020-08-08 13:09:04 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 449 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, 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 0.669 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 124 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 us6000bb42 Id of event.
Event Code 6000bb42 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qeqx49,us6000bb42, A comma-separated list of event ids that are associated to an event.

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