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Light earthquake: M4.4 quake has struck near Puente Alto in Chile

Posted by admin on June 21, 2025 0 Comments

Earthquake location -33.6379S, -70.4187WA light earthquake with magnitude 4.4 (ml/mb) was detected on Saturday, 14 kilometers (9 miles) from Puente Alto in Chile. Exact location of event, depth 106.637 km, -70.4187° West, -33.6379° South. Unique identifier: us6000qll6. Ids that are associated to the event: us6000qll6. The epicenter was at a depth of 106.637 km (66 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.4-magnitude earthquake has occurred at 08:00:49 / 8:00 am (local time epicenter). Date and time of earthquake in UTC/GMT: 21/06/25 / 2025-06-21 08:00:49 / June 21, 2025 @ 8:00 am.

Earthquake epicenter was 29 km (18 miles) from Santiago (c. 4 837 300 pop), 15 km (9 miles) from Puente Alto (c. 510 400 pop), 27 km (16 miles) from San Bernardo (c. 249 900 pop), 66 km (41 miles) from Rancagua (c. 212 700 pop), 21 km (13 miles) from La Pintana (c. 201 200 pop), 36 km (22 miles) from Lo Prado (c. 104 300 pop). Closest city/cities/towns to epicentrum/hypocenter was Rengo, Los Andes, Melipilla (min 5000 pop). Close country/countries that might be effected, Chile (c. 16 746 000 pop).

There are an estimated 13,000 light quakes in the world each year. 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 three and in the last 365 days eleven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage 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: 14 km E of Puente Alto, Chile.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -70.4187° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -33.6379° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 106.637 km Depth of the event in kilometers.
Place 14 km E of Puente Alto, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-06-21 08:00:49 Time when the event occurred. UTC/GMT
Updated 2025-06-21 09:09:52 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 298 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 37 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.153 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 79 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 us6000qll6 Id of event.
Event Code 6000qll6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qll6, A comma-separated list of event ids that are associated to an event.

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