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Light earthquake: M4.8 quake has struck near Chirik

Earthquake location 56.1156S, -153.2724WA light earthquake magnitude 4.8 (ml/mb) has struck on Friday, 150 km ENE of Chirikof Island, Alaska (93 miles). Id of earthquake: ak18746804. Event ids that are associated: at00p62yzw, ak18746804. The earthquake was roughly at a depth of 15.3 km (10 miles). Exact location of event, longitude -153.2724 West, latitude 56.1156 North, depth = 15.3 km. Exact time and date of event in UTC/GMT: 24/03/18 / 2018-03-24 05:52:41 / March 24, 2018 @ 5:52 am. The 4.8-magnitude earthquake has occurred at 19:52:41 / 7:52 pm (local time epicenter). A tsunami warning has been issued near Chirik (Does not indicate if a tsunami actually did or will exist).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days twenty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 150 km ENE of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -153.2724° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.1156° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 15.3 km Depth of the event in kilometers.
Place 150km 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 2018-03-24 05:52:41 Time when the event occurred. UTC/GMT
Updated 2018-03-24 05:57:50 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 354 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 0.62 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 ak18746804 Id of event.
Event Code 18746804 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00p62yzw,ak18746804, A comma-separated list of event ids that are associated to an event.

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