Minor earthquake, 3.8 mag strikes near Saipan in Northern Mariana Islands

A minor earthquake magnitude 3.8 (ml/mb) has struck on Friday, 24 kilometers (15 miles) from Saipan in Northern Mariana Islands. Event id: us6000q4k6. Ids that are associated to the earthquake: us6000q4k6. The epicenter was at a depth of 221.899 km (138 miles). Exact location of earthquake, longitude 145.5228 East, latitude 15.2315 North, depth = 221.899 km. The temblor was detected at 20:37:22 / 8:37 pm (local time epicenter). Global time and date of event 28/03/25 / 2025-03-28 20:37:22 / March 28, 2025 @ 8:37 pm UTC/GMT.

Event epicenter was 25 km (16 miles) from Saipan (c. 48 200 pop), 31 km (19 miles) from San Jose Village (c. 15 000 pop). Closest city/cities/towns to epicentrum/hypocenter was San Jose Village, Saipan (min 5000 pop). Country/countries that might be effected, Northern Mariana Islands (c. 54 000 pop).

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 occurred nearby. Each year there are an estimated 130,000 minor quakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

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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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 24 km W of Saipan, Northern Mariana Islands. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	3.8 mb	The magnitude for the event.
Longitude	145.5228° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	15.2315° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	221.899 km	Depth of the event in kilometers.
Place	24 km W of Saipan, 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	2025-03-28 20:37:22	Time when the event occurred. UTC/GMT
Updated	2025-04-23 17:44:20	Time when the event was most recently updated. UTC/GMT
Timezone offset		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	222	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	26	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.257	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.78 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	111	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	us6000q4k6	Id of event.
Event Code	6000q4k6	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q4k6,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.8 mag strikes near Saipan in Northern Mariana Islands

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