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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.9 mag strikes near Chirik

Posted by admin on October 12, 2017 0 Comments

Earthquake location 54.8527S, -156.1918WA light earthquake with magnitude 4.9 (ml/mb) was detected on Wednesday, 114 km SSW of Chirikof Island, Alaska (71 miles). Exact location of event, longitude -156.1918 West, latitude 54.8527 North, depth = 8.7 km. The 4.9-magnitude earthquake was detected at 14:01:53 / 2:01 pm (local time epicenter). Global date and time of event UTC/GMT: 12/10/17 / 2017-10-12 00:01:53 / October 12, 2017 @ 12:01 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us1000aqjd. Ids that are associated to the event: ak17017316, us1000aqjd. The epicenter of the earthquake was roughly 8.7 km (5 miles) below the earth’s surface.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days six and in the last 365 days seventeen earthquakes of magnitude 3.0 or greater that have been detected nearby. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 114 km SSW of Chirikof Island, Alaska.

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More information

Parameter Value Description
Magnitude 4.9 mb The magnitude for the event.
Longitude -156.1918° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 54.8527° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 8.7 km Depth of the event in kilometers.
Place 114km SSW of Chirikof 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 2017-10-12 00:01:53 Time when the event occurred. UTC/GMT
Updated 2017-10-12 00:19:31 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 369 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 1.024 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.08 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 160 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 us1000aqjd Id of event.
Event Code 1000aqjd An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak17017316,us1000aqjd, A comma-separated list of event ids that are associated to an event.

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