Light earthquake, 4.5 mag has occurred near Ilabaya in Peru

A light earthquake magnitude 4.5 (ml/mb) strikes 20 kilometers (12 miles) from Ilabaya in Peru on Saturday. Exact time and date of earthquake 18/10/25 / 2025-10-18 23:16:10 / October 18, 2025 @ 11:16 pm UTC/GMT. 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: us6000ri2v. Id of event: us6000ri2v. The temblor was reported at 23:16:10 / 11:16 pm (local time epicenter). Exact location of event, depth 10 km, -70.6933° West, -17.366° South. The earthquake occurred at a depth of 10 km (6 miles).

Nearby country/countries that might be effected, Peru (c. 29 907 000 pop). Epicenter of the earthquake was 86 km (53 miles) from Tacna (c. 280 100 pop), 32 km (20 miles) from Moquegua (c. 54 500 pop), 75 km (46 miles) from Ilo (c. 53 500 pop), 20 km (12 miles) from Ilabaya (c. 9 500 pop), 72 km (45 miles) from Pacocha (c. 7 600 pop), 36 km (22 miles) from Torata (c. 7 100 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Tacna, Ilo, Pacocha.

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

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 20 km WNW of Ilabaya, Peru.

More information

Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	-70.6933° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-17.366° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	20 km WNW of Ilabaya, Peru	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-18 23:16:10	Time when the event occurred. UTC/GMT
Updated	2025-10-20 02:00:14	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	27	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.054	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.72 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	138	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	us6000ri2v	Id of event.
Event Code	6000ri2v	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000ri2v,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.5 mag has occurred near Ilabaya in Peru

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