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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near JP Tinian Town pre-WW2 in Northern Mariana Islands

Earthquake location 14.605S, 145.9768WA light earthquake with magnitude 4.1 (ml/mb) was detected on Thursday, 55 kilometers (34 miles) from JP Tinian Town pre-WW2 in Northern Mariana Islands. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 145.9768 East, latitude 14.605 North, depth = 101.48 km. The epicenter of the earthquake was roughly 101.48 km (63 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 15/04/20 / 2020-04-15 16:47:31 / April 15, 2020 @ 4:47 pm. The 4.1-magnitude earthquake has occurred at 02:47:31 / 2:47 am (local time epicenter). Unique identifier: us700091su. Ids that are associated to the event: us700091su.

Close country/countries that might be effected, Northern Mariana Islands (c. 54 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Saipan, San Jose Village. The epicenter was 72 km (45 miles) from Saipan (c. 48 200 pop), 56 km (35 miles) from San Jose Village (c. 15 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days thirteen earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

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: 55 km SE of JP Tinian Town pre-WW2, Northern Mariana Islands. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 145.9768° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 14.605° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 101.48 km Depth of the event in kilometers.
Place 55km 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 2020-04-15 16:47:31 Time when the event occurred. UTC/GMT
Updated 2020-04-23 02:09:20 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 0.657 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 106 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 us700091su Id of event.
Event Code 700091su An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us700091su, A comma-separated list of event ids that are associated to an event.

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