Light earthquake, 4.3 mag has occurred near Palca in Peru

A light earthquake with magnitude 4.3 (ml/mb) was reported 36 kilometers (22 miles) from Palca in Peru on Friday. The temblor was detected at 10:09:02 / 10:09 am (local time epicenter). Id of earthquake: us6000rpix. Event ids that are associated: us6000rpix. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -69.6516 West, latitude -17.6269 South, depth = 176.785 km. The epicenter of the earthquake was roughly 176.785 km (110 miles) below the earth’s surface. Global time and date of event 21/11/25 / 2025-11-21 10:09:02 / November 21, 2025 @ 10:09 am UTC/GMT.

Close country/countries that might be effected, Peru (c. 29 907 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Tacna (min 5000 pop). Earthquake epicenter was 77 km (48 miles) from Tacna (c. 280 100 pop).

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 thirty-seven earthquakes of magnitude 3.0 or greater that has struck near. 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?

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. 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: 36 km ENE of Palca, Peru.

Palca Peru Tacna

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Parameter	Value	Description
Magnitude	4.3 mb	The magnitude for the event.
Longitude	-69.6516° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-17.6269° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	176.785 km	Depth of the event in kilometers.
Place	36 km ENE of Palca, Peru	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-11-21 10:09:02	Time when the event occurred. UTC/GMT
Updated	2025-11-25 22:04:04	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	284	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	13	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.168	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.39 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	184	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	us6000rpix	Id of event.
Event Code	6000rpix	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rpix,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.3 mag has occurred near Palca in Peru

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