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Light World Earthquakes Magnitude 4-4.9

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

Posted by admin on September 4, 2025 0 Comments

Earthquake location -4.617S, 142.2445WA light earthquake magnitude 4.1 (ml/mb) has struck on Saturday, 77 km SW of Ambunti, Papua New Guinea (48 miles). The temblor was detected at 04:50:45 / 4:50 am (local time epicenter). Global date and time of event UTC/GMT: 09/08/25 / 2025-08-09 04:50:45 / August 9, 2025 @ 4:50 am. The epicenter of the earthquake was roughly 114.529 km (71 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us7000qtid. Id of event: us7000qtid. Exact location of event, longitude 142.2445 East, latitude -4.617 South, depth = 114.529 km.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. 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 sixteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

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: 77 km SW of Ambunti, Papua New Guinea.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 142.2445° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -4.617° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 114.529 km Depth of the event in kilometers.
Place 77 km SW of Ambunti, 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 2025-08-09 04:50:45 Time when the event occurred. UTC/GMT
Updated 2025-09-04 04:12:20 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 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 14 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.594 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.23 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 210 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 us7000qtid Id of event.
Event Code 7000qtid An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qtid, A comma-separated list of event ids that are associated to an event.

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