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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Chignik Lake in Alaska



Earthquake location 56.7369S, -158.0446WA light earthquake magnitude 4.2 (ml/mb) strikes 68 km NE of Chignik Lake, Alaska (42 miles) on Saturday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: ak15529491. Event ids that are associated: ak15529491. Global date and time of event UTC/GMT: 18/03/17 / 2017-03-18 09:01:25 / March 18, 2017 @ 9:01 am. The 4.2-magnitude earthquake was detected at 00:01:25 / 12:01 am (local time epicenter). Exact location of event, depth 103.4 km, -158.0446° West, 56.7369° North. The earthquake was roughly at a depth of 103.4 km (64 miles).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days one hundred and thirty-two 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?

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: 68 km NE of Chignik Lake, 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 -158.0446° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 56.7369° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 103.4 km Depth of the event in kilometers.
Place 68km NE of Chignik Lake, Alaska Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-18 09:01:25 Time when the event occurred. UTC/GMT
Updated 2017-03-18 09:07:55 Time when the event was most recently updated. UTC/GMT
Timezone offset -540 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 automatic 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 ak The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,ak, 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.89 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID ak15529491 Id of event.
Event Code 15529491 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,ak15529491, A comma-separated list of event ids that are associated to an event.

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