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


Earthquake location 65.992S, -166.476WA light earthquake magnitude 4.1 (ml/mb) strikes 34 km SSW of Shishmaref, Alaska (21 miles) on Sunday. Exact time and date of event in UTC/GMT: 17/07/16 / 2016-07-17 09:34:11 / July 17, 2016 @ 9:34 am. Exact location of earthquake, -166.476° West, 65.992° North, depth 29 km. The earthquake occurred at a depth of 29 km (18 miles). The 4.1-magnitude earthquake was detected at 01:34:11 / 1:34 am (local time epicenter). Id of earthquake: at00oagd8z. Event ids that are associated: at00oagd8z. A tsunami warning has been issued near Shishmaref in Alaska (Does not indicate if a tsunami actually did or will exist).

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 34 km SSW of Shishmaref, Alaska. This information 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 -166.476° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 65.992° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 29 km Depth of the event in kilometers.
Place 34km SSW of Shishmaref, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-07-17 09:34:11 Time when the event occurred. UTC/GMT
Updated 2016-07-17 09:40:33 Time when the event was most recently updated. UTC/GMT
Timezone offset -480 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 259 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 36 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7384152 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.06 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 154.799987616 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 at00oagd8z Id of event.
Event Code 00oagd8z An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,at00oagd8z, A comma-separated list of event ids that are associated to an event.

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