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Light earthquake 4.1 mag, 154 km S of Little Sitkin Island, Alaska

Posted by admin on January 8, 2018 0 Comments

Earthquake location 50.5661S, 178.7276WA light earthquake with magnitude 4.1 (ml/mb) was reported 154 km S of Little Sitkin Island, Alaska (96 miles) on Tuesday. The temblor was reported at 04:19:03 / 4:19 am (local time epicenter). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us1000c21q. Event ids that are associated: us1000c21q. Exact location of event, longitude 178.7276 East, latitude 50.5661 North, depth = 10 km. Global date and time of event UTC/GMT: 08/01/18 / 2018-01-08 16:19:03 / January 8, 2018 @ 4:19 pm.

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

Did you feel the quake?

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 154 km S of Little Sitkin Island, 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 178.7276° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 50.5661° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 154km S of Little Sitkin 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 2018-01-08 16:19:03 Time when the event occurred. UTC/GMT
Updated 2018-01-08 20:55:11 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 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 2.893 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.84 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 226 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 us1000c21q Id of event.
Event Code 1000c21q An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000c21q, A comma-separated list of event ids that are associated to an event.

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