On Tuesday Evening a Shallow M5.5 Earthquake struck in the South Pacific Ocean near Valparaíso (Chile).

Written by Earthquakelist.org on July 2nd, 2025. Last updated July 19th, 2025.

In the evening of Tuesday July 1st, 2025, a shallow and significant MAG-5.5 earthquake hit in the South Pacific Ocean 99 kilometer from Valparaíso, Chile. Shaking may have been felt by a total of 11 million people.

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Earthquake Summary

This earthquake hit under water in the South Pacific Ocean, 78 kilometers (48 mi) off the coast of Chile, 99 kilometer southwest of Valparaíso. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jul 1, 2025 21:39 (Santiago Time) - Jul 2, 2025 01:39 Universal Time.
Location:	99 km SW of Valparaíso, Chile. Coordinates 33°34'20"S 72°29'8"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.5 Detected by 19 stations. Maximum Error Range ±0.071 .
Depth:	10 km (6 mi) A very shallow depth.
Max. Intensity:	V Moderate On the Modified Mercalli Scale.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 fatalities, and a 96% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 11 million people exposed to shaking

The USGS has published a report estimating the number of people exposed to this earthquake. Acoording to their analysis, roughly 11 million have been exposed to shaking at an MMI level of II or higher.

The highest earthquake impact level for this earthquake is IV, which corresponds with light shaking and likely no damage. Roughly 309,100 people are expected to be exposed to this level. Intensity level III was experienced by the majority of people (around 11 million). In their region, weak shaking and probably no damage can be expected.

People in 2 countries have been exposed to shaking. Roughly 11 million people were exposed to shaking in Chile , with level IV (light shaking, likely no damage) as the highest recorded. In Argentina, shaking was experienced too.

Nearby towns and cities

This earthquake may have been felt in Chile . Located 81 kilometer (50 mi) west of the epicenter of this earthquake, San Antonio (Valparaíso, Chile) is the nearest significant population center. The intensity of shaking and damage in San Antonio is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).

Multiple large cities are in proximity of today's earthquake. Santiago is located 171 km to the east and experienced an intensity of III (weak shaking, probably no damage). Puente Alto is located 177 km to the east and experienced an intensity of III (weak shaking, probably no damage). Valparaíso is located 99 km to the north-east and experienced an intensity of III (weak shaking, probably no damage).

The table below provides an overview of all places in proximity of today's earthquake. Where available, the estimated intensity on the Modified Mercalli Intensity Scale in each place is included. Places where this information is omitted likely experienced little impact.

Overview of nearby places

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is IV.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Shaking reported by 4 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 4 people have reported shaking in 4 places, all within Chile.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Buin, Metropolitana, Chile: 1 person.
• Santiago, Metropolitana, Chile: 1 person.
• San Antonio, Valparaíso, Chile: 1 person.
• Viña del Mar, Valparaíso, Chile: 1 person.

4 Aftershocks detected

This main shock was followed by 4 smaller aftershocks. A 4.3 magnitude earthquake hit 7 mins later 19 km (12 mi) west-southwest of this earthquake.

Overview of foreshocks and aftershocks

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since December 13th, 2024, when a 6.4 magnitude earthquake hit 253 km (157 mi) further south-east. An even stronger magnitude 8.3 earthquake struck on September 16th, 2015.

In total, 63 earthquakes with a magnitude of 5.5 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 2 months.

Low tsunami risk

Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 19/07/25 03:08 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.

1. US Geographic Society (USGS): Earthquake us7000qa3y
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250702_0000016
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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