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Light earthquake, 4.4 mag was detected near Larsen Bay in Alaska

Posted by admin on December 12, 2015 0 Comments

Earthquake location 56.876S, -154.16WA light earthquake with magnitude 4.4 (ml/mb) was detected on Saturday, 74 km S of Larsen Bay, Alaska (46 miles). The temblor was picked up at 13:36:45 / 1:36 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 12/12/15 / 2015-12-12 22:36:45 / December 12, 2015 @ 10:36 pm. A tsunami warning has been issued near Larsen Bay in Alaska (Does not indicate if a tsunami actually did or will exist). Id of earthquake: at00nz9o59. Event ids that are associated: at00nz9o59. The earthquake was roughly at a depth of 43 km (27 miles). Exact location of earthquake, longitude -154.16 West, latitude 56.876 North, depth = 43 km.

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days fourty-two 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.

How would you describe the shaking?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 74 km S of Larsen Bay, Alaska.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -154.16° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.876° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 43 km Depth of the event in kilometers.
Place 74km S of Larsen Bay, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-12 22:36:45 Time when the event occurred. UTC/GMT
Updated 2015-12-12 22:39:24 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 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 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 at The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,at, A comma-separated list of network contributors.
Number of Stations Used 19 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.31800361 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 126 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 at00nz9o59 Id of event.
Event Code 00nz9o59 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00nz9o59, A comma-separated list of event ids that are associated to an event.

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