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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag has occurred near JP Tinian Town pre-WW2 in Northern Mariana Islands

Earthquake location 14.0531S, 146.8418WA light earthquake with magnitude 4.6 (ml/mb) was detected on Saturday, 165 km SE of JP Tinian Town pre-WW2, Northern Mariana Islands (103 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us1000d81v. Unique identifier: us1000d81v. Exact time and date of event in UTC/GMT: 17/03/18 / 2018-03-17 08:12:14 / March 17, 2018 @ 8:12 am. The 4.6-magnitude earthquake was detected at 18:12:14 / 6:12 pm (local time epicenter). The earthquake was roughly at a depth of 23.8 km (15 miles). Exact location of earthquake, longitude 146.8418 East, latitude 14.0531 North, depth = 23.8 km.

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days six and in the last 365 days twenty-five earthquakes of magnitude 3.0 or greater that has struck near. 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.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 165 km SE of JP Tinian Town pre-WW2, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude 146.8418° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 14.0531° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.8 km Depth of the event in kilometers.
Place 165km SE of JP Tinian Town pre-WW2, 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 2018-03-17 08:12:14 Time when the event occurred. UTC/GMT
Updated 2018-03-30 12:46:02 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 326 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 1.559 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 89 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 us1000d81v Id of event.
Event Code 1000d81v An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d81v, A comma-separated list of event ids that are associated to an event.

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