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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Semisopochnoi Island in Alaska

Posted by admin on January 26, 2019 0 Comments

Earthquake location 51.9105S, -179.7632WA light earthquake magnitude 4 (ml/mb) has occurred on Saturday, 43 km E of Semisopochnoi Island, Alaska (27 miles). Exact location of event, depth 169.91 km, -179.7632° West, 51.9105° North. The epicenter was at a depth of 169.91 km (106 miles). Exact time and date of earthquake 30/12/18 / 2018-12-30 06:06:01 / December 30, 2018 @ 6:06 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us2000j562. Unique identifier: us2000j562. The temblor was detected at 18:06:01 / 6:06 pm (local time epicenter).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been three, in the last 10 days five, in the past 30 days six and in the last 365 days seventy-eight earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 43 km E of Semisopochnoi Island, Alaska.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -179.7632° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 51.9105° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 169.91 km Depth of the event in kilometers.
Place 43km E 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 2018-12-30 06:06:01 Time when the event occurred. UTC/GMT
Updated 2019-01-26 12:19:27 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 246 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 1.619 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 177 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 us2000j562 Id of event.
Event Code 2000j562 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000j562, A comma-separated list of event ids that are associated to an event.

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