Minor earthquake, 3.9 mag has occurred near Semisopochnoi Island in Alaska

A minor earthquake magnitude 3.9 (ml/mb) has occurred on Friday, 61 km SSE of Semisopochnoi Island, Alaska (38 miles). The 3.9-magnitude earthquake has occurred at 19:12:27 / 7:12 pm (local time epicenter). Exact location of event, depth 54.18 km, 179.8182° East, 51.4148° North. The earthquake occurred at a depth of 54.18 km (34 miles). Exact time and date of earthquake 23/03/18 / 2018-03-23 07:12:27 / March 23, 2018 @ 7:12 am UTC/GMT. Event id: us1000d7ye. Ids that are associated to the earthquake: us1000d7ye.

There are an estimated 130,000 minor 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 seven and in the last 365 days one hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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: 61 km SSE of Semisopochnoi Island, Alaska. This data comes from the USGS Earthquake Notification Service.

Alaska Semisopochnoi Island

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Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	179.8182° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	51.4148° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	54.18 km	Depth of the event in kilometers.
Place	61km SSE of Semisopochnoi 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	2018-03-23 07:12:27	Time when the event occurred. UTC/GMT
Updated	2018-03-23 10:13:57	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	234	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	0.326	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.91 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	187	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	us1000d7ye	Id of event.
Event Code	1000d7ye	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us1000d7ye,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.9 mag has occurred near Semisopochnoi Island in Alaska

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