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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near La Tirana in Chile

Posted by admin on July 29, 2025 0 Comments

Earthquake location -20.9831S, -70.4984WA light earthquake magnitude 4.3 (ml/mb) has struck on Sunday, 86 kilometers (53 miles) from La Tirana in Chile. The temblor was picked up at 04:29:00 / 4:29 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000qvfh. Event ids that are associated: us6000qvfh. Exact time and date of earthquake 27/07/25 / 2025-07-27 04:29:00 / July 27, 2025 @ 4:29 am UTC/GMT. Exact location of earthquake, longitude -70.4984 West, latitude -20.9831 South, depth = 29.547 km. The epicenter of the earthquake was roughly 29.547 km (18 miles) below the earth’s surface.

The epicenter was 93 km (58 miles) from Iquique (c. 227 500 pop). Closest city/cities/towns to epicentrum/hypocenter was Iquique (min 5000 pop). Country/countries that might be effected, Chile (c. 16 746 000 pop).

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

How would you describe the shaking?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 86 km SSW of La Tirana, Chile.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -70.4984° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.9831° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 29.547 km Depth of the event in kilometers.
Place 86 km SSW of La Tirana, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-07-27 04:29:00 Time when the event occurred. UTC/GMT
Updated 2025-07-29 23:09:31 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.361 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 143 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 us6000qvfh Id of event.
Event Code 6000qvfh An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qvfh, A comma-separated list of event ids that are associated to an event.

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