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Light earthquake, 4.7 mag has occurred near Chirik


Earthquake location 56.3547S, -154.364WA light earthquake magnitude 4.7 (ml/mb) has struck on Saturday, 98 km NE of Chirikof Island, Alaska (61 miles). Unique identifier: ak0194ggoaum. Ids that are associated to the event: at00ppklny, ak0194ggoaum. Exact time and date of earthquake 07/04/19 / 2019-04-07 02:59:59 / April 7, 2019 @ 2:59 am UTC/GMT. A tsunami warning has been issued near Chirik (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 17:59:59 / 5:59 pm (local time epicenter). The epicenter was at a depth of 19.4 km (12 miles). Exact location of event, depth 19.4 km, -154.364° West, 56.3547° North.

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

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 98 km NE of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -154.364° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.3547° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 19.4 km Depth of the event in kilometers.
Place 98km NE 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 2019-04-07 02:59:59 Time when the event occurred. UTC/GMT
Updated 2019-04-07 03:08:50 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 3.75 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 340 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 0.76 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 ak0194ggoaum Id of event.
Event Code 0194ggoaum An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00ppklny,ak0194ggoaum, A comma-separated list of event ids that are associated to an event.

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