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Minor World Earthquakes Magnitude -3.9

Minor earthquake, 3.9 mag strikes near Agrihan in Northern Mariana Islands

Posted by admin on December 16, 2016 0 Comments

Earthquake location 18.7987S, 145.3924WA minor earthquake with magnitude 3.9 (ml/mb) was reported 29 km W of Agrihan, Northern Mariana Islands (18 miles) on Thursday. Exact location of earthquake, 145.3924° East, 18.7987° North, depth 268.87 km. All ids that are associated to the event: us200080rt. Unique identifier: us200080rt. The 3.9-magnitude earthquake was detected at 02:21:13 / 2:21 am (local time epicenter). Exact time and date of earthquake 07/12/16 / 2016-12-07 16:21:13 / December 7, 2016 @ 4:21 pm UTC/GMT. The earthquake was roughly at a depth of 268.87 km (167 miles).

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days five 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. There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 29 km W of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 3.9 mb The magnitude for the event.
Longitude 145.3924° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7987° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 268.87 km Depth of the event in kilometers.
Place 29km W of Agrihan, Northern Mariana Islands Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-12-07 16:21:13 Time when the event occurred. UTC/GMT
Updated 2016-12-16 04:58:53 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 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 3.558 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 112 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 us200080rt Id of event.
Event Code 200080rt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200080rt, A comma-separated list of event ids that are associated to an event.

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