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Light earthquake: M4 quake has struck near Kodiak in Alaska

Posted by admin on March 27, 2018 0 Comments

Earthquake location 56.4129S, -148.652WA light earthquake magnitude 4 (ml/mb) has struck on Monday, 274 km ESE of Kodiak, Alaska (170 miles). Event ids that are associated to the earthquake: us1000d9hx. Id of event: us1000d9hx. Exact time and date of event in UTC/GMT: 27/03/18 / 2018-03-27 09:48:45 / March 27, 2018 @ 9:48 am. Exact location of event, longitude -148.652 West, latitude 56.4129 North, depth = 17.13 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 17.13 km (11 miles). The 4-magnitude earthquake has occurred at 23:48:45 / 11:48 pm (local time epicenter).

In the past 24 hours, there have been three, in the last 10 days twenty-one, in the past 30 days four hundred and seventeen and in the last 365 days two thousand, eight hundred and eight 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. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 274 km ESE of Kodiak, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -148.652° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.4129° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 17.13 km Depth of the event in kilometers.
Place 274km ESE of Kodiak, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-27 09:48:45 Time when the event occurred. UTC/GMT
Updated 2018-03-27 11:39:50 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 reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 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 246 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, 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 2.547 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 228 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 us1000d9hx Id of event.
Event Code 1000d9hx An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d9hx, A comma-separated list of event ids that are associated to an event.

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