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Light earthquake: M4.2 quake has struck near Big Lake in Alaska

Posted by admin on November 30, 2018 0 Comments

A light earthquake magnitude 4.2 (ml/mb) strikes 17 kilometers (11 miles) from Big Lake in Alaska on Friday. The epicenter was at a depth of 45.54 km (28 miles). Event id: us1000hyl2. Ids that are associated to the earthquake: us1000hyl2. Date and time of earthquake in UTC/GMT: 30/11/18 / 2018-11-30 19:42:46 / November 30, 2018 @ 7:42 pm. Exact location of event, depth 45.54 km, -150.0807° West, 61.3803° North. The temblor was detected at 10:42:46 / 10:42 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Close country/countries that might be effected, United States (c. 310 233 000 pop). Earthquake epicenter was 20 km (13 miles) from Anchorage (c. 291 800 pop), 28 km (17 miles) from Eagle River (c. 24 800 pop), 29 km (18 miles) from Knik-Fairview (c. 14 900 pop), 48 km (30 miles) from Lakes (c. 8 400 pop), 44 km (27 miles) from Tanaina (c. 8 200 pop), 41 km (25 miles) from Wasilla (c. 7 800 pop). Closest city/cities/towns to epicentrum/hypocenter was Palmer, Gateway, Lakes (min 5000 pop).

In the past 24 hours, there have been twenty-eight, in the last 10 days twenty-nine, in the past 30 days thirty and in the last 365 days eighty-six earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 17 km SSW of Big Lake, Alaska. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	-150.0807° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	61.3803° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	45.54 km	Depth of the event in kilometers.
Place	17km SSW of Big 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	2018-11-30 19:42:46	Time when the event occurred. UTC/GMT
Updated	2018-11-30 20:08:57	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	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	,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	0.335	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.73 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	25	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	us1000hyl2	Id of event.
Event Code	1000hyl2	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000hyl2,	A comma-separated list of event ids that are associated to an event.

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Light earthquake: M4.2 quake has struck near Big Lake in Alaska

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