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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Shemya Island in Alaska

Posted by admin on April 19, 2017 0 Comments

Earthquake location 52.1171S, 174.0777WA light earthquake magnitude 4.2 (ml/mb) strikes 67 km S of Shemya Island, Alaska (42 miles) on Sunday. Event id: us10008dvn. Ids that are associated to the earthquake: ak15698993, us10008dvn. Exact location, longitude 174.0777° East, latitude 52.1171° North, depth = 37.21 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 02/04/17 / 2017-04-02 01:37:56 / April 2, 2017 @ 1:37 am. The 4.2-magnitude earthquake has occurred at 13:37:56 / 1:37 pm (local time epicenter). The earthquake occurred at a depth of 37.21 km (23 miles).

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

Did you feel anything?

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: 67 km S of Shemya Island, Alaska. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 174.0777° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 52.1171° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 37.21 km Depth of the event in kilometers.
Place 67km S of Shemya 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 2017-04-02 01:37:56 Time when the event occurred. UTC/GMT
Updated 2017-04-19 00:23:28 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 271 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 ,ak,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 0.613 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.93 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 181 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 us10008dvn Id of event.
Event Code 10008dvn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15698993,us10008dvn, A comma-separated list of event ids that are associated to an event.

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