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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Maug Islands region, Northern Mariana Islands

Posted by admin on October 12, 2025 0 Comments

Earthquake location 19.2351S, 145.578WA light earthquake with magnitude 4.5 (ml/mb) was detected on Thursday, Maug Islands region, Northern Mariana Islands (0 miles). All ids that are associated to the event: us6000rg7b. Unique identifier: us6000rg7b. Date and time of earthquake in UTC/GMT: 18/09/25 / 2025-09-18 07:41:50 / September 18, 2025 @ 7:41 am. The 4.5-magnitude earthquake was detected at 07:41:50 / 7:41 am (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, 145.578° East, 19.2351° North, depth 165.243 km. The epicenter was at a depth of 165.243 km (103 miles).

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 eighty-two earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: Maug Islands region, Northern Mariana Islands.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 145.578° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.2351° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 165.243 km Depth of the event in kilometers.
Place Maug Islands region, 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 2025-09-18 07:41:50 Time when the event occurred. UTC/GMT
Updated 2025-10-12 07:23:32 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 312 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 69 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.977 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 122 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 us6000rg7b Id of event.
Event Code 6000rg7b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rg7b, A comma-separated list of event ids that are associated to an event.

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