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Light earthquake: M4.3 quake has struck near Semisopochnoi Island in Alaska

Posted by admin on February 10, 2018 0 Comments

Earthquake location 51.7248S, 179.9099WA light earthquake magnitude 4.3 (ml/mb) has struck on Saturday, 33 km SE of Semisopochnoi Island, Alaska (21 miles). Exact time and date of earthquake 10/02/18 / 2018-02-10 03:09:30 / February 10, 2018 @ 3:09 am UTC/GMT. Exact location of earthquake, longitude 179.9099 East, latitude 51.7248 North, depth = 72.3 km. The earthquake was roughly at a depth of 72.3 km (45 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us2000d02u. Event ids that are associated: us2000d02u. The temblor was detected at 15:09:30 / 3:09 pm (local time epicenter).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days six and in the last 365 days one hundred and ten earthquakes of magnitude 3.0 or greater that has struck near. 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.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 33 km SE of Semisopochnoi Island, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 179.9099° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.7248° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72.3 km Depth of the event in kilometers.
Place 33km SE of Semisopochnoi Island, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-10 03:09:30 Time when the event occurred. UTC/GMT
Updated 2018-02-10 03:23:40 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 284 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 ,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 0.516 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.8 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 143 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 us2000d02u Id of event.
Event Code 2000d02u An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d02u, A comma-separated list of event ids that are associated to an event.

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