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Light earthquake: M4.1 quake has struck near Atka in Alaska

Posted by admin on November 18, 2015 0 Comments

Earthquake location 51.4083S, -172.8411WA light earthquake magnitude 4.1 (ml/mb) has occurred on Monday, 128 km SE of Atka, Alaska (80 miles). Date and time of earthquake in UTC/GMT: 09/11/15 / 2015-11-09 16:07:30 / November 9, 2015 @ 4:07 pm. Id of earthquake: ak11991659. Event ids that are associated: ak11991659. The epicenter was at a depth of 25.7 km (16 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -172.8411° West, 51.4083° North, depth 25.7 km. The 4.1-magnitude earthquake has occurred at 04:07:30 / 4:07 am (local time epicenter).

In the past 24 hours, there have been seventeen, in the last 10 days thirty-eight, in the past 30 days fourty-one and in the last 365 days one hundred and seventy-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every 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.

How would you describe the shaking?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 128 km SE of Atka, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -172.8411° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.4083° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 25.7 km Depth of the event in kilometers.
Place 128km SE of Atka, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-11-09 16:07:30 Time when the event occurred. UTC/GMT
Updated 2015-11-18 00:05:30 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 259 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 ,ak, A comma-separated list of network contributors.
Number of Stations Used 11 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 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 230.399981568 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 ak11991659 Id of event.
Event Code 11991659 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak11991659, A comma-separated list of event ids that are associated to an event.

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