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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Agrihan in Northern Mariana Islands



Earthquake location 18.6344S, 145.5939WA light earthquake magnitude 4.1 (ml/mb) has struck on Saturday, 16 km SSW of Agrihan, Northern Mariana Islands (10 miles). The 4.1-magnitude earthquake was detected at 16:34:21 / 4:34 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, 145.5939° East, 18.6344° North, depth 207.57 km. The earthquake was roughly at a depth of 207.57 km (129 miles). Event ids that are associated to the earthquake: us10008diy. Id of event: us10008diy. Global time and date of event 25/03/17 / 2017-03-25 06:34:21 / March 25, 2017 @ 6:34 am UTC/GMT.

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 seven and in the last 365 days one hundred and thirty-one earthquakes of magnitude 3.0 or greater that have been detected nearby. Each year there are an estimated 13,000 light quakes in the world.

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 16 km SSW of Agrihan, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 145.5939° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6344° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 207.57 km Depth of the event in kilometers.
Place 16km SSW 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 2017-03-25 06:34:21 Time when the event occurred. UTC/GMT
Updated 2017-04-13 09:23:40 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 259 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 3.389 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 125 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 us10008diy Id of event.
Event Code 10008diy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10008diy, A comma-separated list of event ids that are associated to an event.

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