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Light earthquake, 4.1 mag strikes near Atka in Alaska

Posted by admin on February 21, 2019 0 Comments

Earthquake location 51.8209S, -173.2983WA light earthquake magnitude 4.1 (ml/mb) strikes 74 km ESE of Atka, Alaska (46 miles) on Thursday. Exact location of event, longitude -173.2983 West, latitude 51.8209 North, depth = 50.6 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 21/02/19 / 2019-02-21 17:13:45 / February 21, 2019 @ 5:13 pm UTC/GMT. The 4.1-magnitude earthquake was detected at 05:13:45 / 5:13 am (local time epicenter). The earthquake was roughly at a depth of 50.6 km (31 miles). Id of earthquake: ak0192ea5b0t. Event ids that are associated: ak0192ea5b0t.

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days three and in the last 365 days one hundred and twenty-four 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?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 74 km ESE 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 -173.2983° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.8209° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 50.6 km Depth of the event in kilometers.
Place 74km ESE 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 2019-02-21 17:13:45 Time when the event occurred. UTC/GMT
Updated 2019-02-21 19:13:19 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 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 0.43 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 ak0192ea5b0t Id of event.
Event Code 0192ea5b0t An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak0192ea5b0t, A comma-separated list of event ids that are associated to an event.

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