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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.9 quake has struck near Chignik Lake in Alaska

Posted by admin on March 15, 2017 0 Comments

Earthquake location 55.3296S, -157.7955WA light earthquake with magnitude 4.9 (ml/mb) was detected on Monday, 119 km SSE of Chignik Lake, Alaska (74 miles). Exact time and date of earthquake 27/02/17 / 2017-02-27 16:07:26 / February 27, 2017 @ 4:07 pm UTC/GMT. Event ids that are associated to the earthquake: ak15418443, us20008mpl. Id of event: us20008mpl. The 4.9-magnitude earthquake has occurred at 05:07:26 / 5:07 am (local time epicenter). The earthquake was roughly at a depth of 25.35 km (16 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 25.35 km, -157.7955° West, 55.3296° North.

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

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 119 km SSE of Chignik Lake, Alaska.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude -157.7955° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 55.3296° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.35 km Depth of the event in kilometers.
Place 119km SSE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-02-27 16:07:26 Time when the event occurred. UTC/GMT
Updated 2017-03-15 16:49:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -660 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 369 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 ,ak,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 1.034 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.77 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us20008mpl Id of event.
Event Code 20008mpl An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15418443,us20008mpl, A comma-separated list of event ids that are associated to an event.

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