Light earthquake, 4.2 mag was detected near Samarai in Papua New Guinea

A light earthquake magnitude 4.2 (ml/mb) strikes 25 kilometers (16 miles) from Samarai in Papua New Guinea on Friday. The 4.2-magnitude earthquake has occurred at 20:37:55 / 8:37 pm (local time epicenter). Exact time and date of earthquake 31/07/20 / 2020-07-31 20:37:55 / July 31, 2020 @ 8:37 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us6000b7ng. Ids that are associated to the event: us6000b7ng. The earthquake occurred at a depth of 51.73 km (32 miles) below the earth’s surface. Exact location of event, longitude 150.8971 East, latitude -10.6331 South, depth = 51.73 km.

Closest city/cities/towns to epicentrum/hypocenter was Alotau (min 5000 pop). Nearby country/countries that might be effected, Papua New Guinea (c. 6 065 000 pop). Epicenter of the earthquake was 60 km (37 miles) from Alotau (c. 10 000 pop).

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. 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: 25 km E of Samarai, Papua New Guinea.

More information

Parameter	Value	Description
Magnitude	4.2 mb	The magnitude for the event.
Longitude	150.8971° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-10.6331° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	51.73 km	Depth of the event in kilometers.
Place	25 km E of Samarai, 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	2020-07-31 20:37:55	Time when the event occurred. UTC/GMT
Updated	2020-08-01 13:41:01	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	271	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	3.878	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.85 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	269	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	us6000b7ng	Id of event.
Event Code	6000b7ng	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000b7ng,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.2 mag was detected near Samarai in Papua New Guinea

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