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Moderate earthquake, 5 mag was detected near Perryville in Alaska


Earthquake location 55.046S, -157.907WA moderate earthquake with magnitude 5 (ml/mb) was reported 124 km SE of Perryville, Alaska (77 miles) on Tuesday. Exact time and date of event in UTC/GMT: 18/08/20 / 2020-08-18 18:28:34 / August 18, 2020 @ 6:28 pm. The temblor was reported at 18:28:34 / 6:28 pm (local time epicenter). The epicenter of the earthquake was roughly 40 km (25 miles) below the earth’s surface. Id of earthquake: at00qf9vbm. Event ids that are associated: at00qf9vbm. A tsunami warning has been issued near Perryville in Alaska (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -157.907 West, latitude 55.046 North, depth = 40 km.

In the past 24 hours, there have been one, in the last 10 days thirteen, in the past 30 days one hundred and ten and in the last 365 days one hundred and fourty-one earthquakes of magnitude 3.0 or greater that has occurred nearby. Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

Did you feel anything?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 124 km SE of Perryville, Alaska.

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More information

Parameter Value Description
Magnitude 5 mb The magnitude for the event.
Longitude -157.907° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.046° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 40 km Depth of the event in kilometers.
Place 124 km SE 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 2020-08-18 18:28:34 Time when the event occurred. UTC/GMT
Updated 2020-08-18 18:35:01 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 385 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 50 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.289082 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 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 Ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID at00qf9vbm Id of event.
Event Code 00qf9vbm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00qf9vbm, A comma-separated list of event ids that are associated to an event.

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