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Light earthquake: M4.2 quake has struck near San Pedro de Atacama in Chile

Posted by admin on July 25, 2025 0 Comments

Earthquake location -22.8136S, -68.5007WA light earthquake magnitude 4.2 (ml/mb) has occurred on Friday, 32 kilometers (20 miles) from San Pedro de Atacama in Chile. The temblor was picked up at 09:35:30 / 9:35 am (local time epicenter). Unique identifier: us7000qddv. Ids that are associated to the event: us7000qddv. The epicenter of the earthquake was roughly 107.599 km (67 miles) below the earth’s surface. Exact time and date of earthquake 18/07/25 / 2025-07-18 09:35:30 / July 18, 2025 @ 9:35 am UTC/GMT. Exact location, longitude -68.5007° West, latitude -22.8136° South, depth = 107.599 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Calama. Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). The epicenter was 59 km (37 miles) from Calama (c. 143 100 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days six, in the past 30 days nine and in the last 365 days eighty-four earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 32 km WNW of San Pedro de Atacama, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -68.5007° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.8136° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 107.599 km Depth of the event in kilometers.
Place 32 km WNW of San Pedro de Atacama, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-07-18 09:35:30 Time when the event occurred. UTC/GMT
Updated 2025-07-25 09:25:32 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 43 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.327 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 53 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 us7000qddv Id of event.
Event Code 7000qddv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qddv, A comma-separated list of event ids that are associated to an event.

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