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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Rabaul in Papua New Guinea


Earthquake location -4.4343S, 151.6327WA light earthquake with magnitude 4.1 (ml/mb) was reported 64 kilometers (40 miles) from Rabaul in Papua New Guinea on Sunday. Exact time and date of event in UTC/GMT: 23/03/25 / 2025-03-23 06:56:10 / March 23, 2025 @ 6:56 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 151.6327 East, latitude -4.4343 South, depth = 233.667 km. Event ids that are associated to the earthquake: us7000ppgn. Id of event: us7000ppgn. The 4.1-magnitude earthquake was detected at 06:56:10 / 6:56 am (local time epicenter). The epicenter of the earthquake was roughly 233.667 km (145 miles) below the earth’s surface.

Close country/countries, Papua New Guinea (c. 6 065 000 pop) (That might be effected). Event epicenter was 71 km (44 miles) from Kokopo (c. 26 300 pop), 65 km (41 miles) from Rabaul (c. 8 100 pop). Closest city/cities/towns to epicentrum/hypocenter was Kokopo, Rabaul (min 5000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days fifty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 64 km WSW of Rabaul, Papua New Guinea.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 151.6327° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -4.4343° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 233.667 km Depth of the event in kilometers.
Place 64 km WSW of Rabaul, Papua New Guinea Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-03-23 06:56:10 Time when the event occurred. UTC/GMT
Updated 2025-04-03 06:31:04 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 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 24 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.582 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 87 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 us7000ppgn Id of event.
Event Code 7000ppgn An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000ppgn, A comma-separated list of event ids that are associated to an event.

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