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Moderate earthquake, 5.5 mag was detected near Chirik


Earthquake location 56.1291S, -153.5473WA moderate earthquake magnitude 5.5 (ml/mb) has occurred on Thursday, 133 km ENE of Chirikof Island, Alaska (83 miles). A tsunami warning has been issued near Chirik (Does not indicate if a tsunami actually did or will exist). The 5.5-magnitude earthquake was detected at 14:22:44 / 2:22 pm (local time epicenter). Event id: ak0204ym6afq. Ids that are associated to the earthquake: at00q8wp1w, ak0204ym6afq. Exact location of earthquake, longitude -153.5473 West, latitude 56.1291 North, depth = 24.7 km. The earthquake was roughly at a depth of 24.7 km (15 miles). Global date and time of event UTC/GMT: 17/04/20 / 2020-04-17 00:22:44 / April 17, 2020 @ 12:22 am.

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

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 133 km ENE of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 5.5 mb The magnitude for the event.
Longitude -153.5473° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.1291° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 24.7 km Depth of the event in kilometers.
Place 133km ENE of Chirikof Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-04-17 00:22:44 Time when the event occurred. UTC/GMT
Updated 2020-04-17 00:26:52 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 automatic 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 465 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at,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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 ak0204ym6afq Id of event.
Event Code 0204ym6afq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00q8wp1w,ak0204ym6afq, A comma-separated list of event ids that are associated to an event.

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