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Light earthquake: M4.4 quake has struck near Chirik

Posted by admin on April 18, 2020 0 Comments

Earthquake location 56.0666S, -153.4652WA light earthquake with magnitude 4.4 (ml/mb) was detected on Friday, 137 km ENE of Chirikof Island, Alaska (85 miles). A tsunami warning has been issued near Chirik (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 18/04/20 / 2020-04-18 04:09:47 / April 18, 2020 @ 4:09 am. The 4.4-magnitude earthquake has occurred at 18:09:47 / 6:09 pm (local time epicenter). The earthquake was roughly at a depth of 17.4 km (11 miles). Id of earthquake: ak02050c0l7f. Event ids that are associated: at00q8yu8a, ak02050c0l7f. Exact location, longitude -153.4652° West, latitude 56.0666° North, depth = 17.4 km.

In the past 24 hours, there have been one, in the last 10 days six, in the past 30 days six and in the last 365 days fourty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

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: 137 km ENE of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -153.4652° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.0666° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.4 km Depth of the event in kilometers.
Place 137km 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 2020-04-18 04:09:47 Time when the event occurred. UTC/GMT
Updated 2020-04-18 04:19:33 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 298 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 0.82 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 ak02050c0l7f Id of event.
Event Code 02050c0l7f An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00q8yu8a,ak02050c0l7f, A comma-separated list of event ids that are associated to an event.

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