Written by on . Last updated July 18th, 2024.

In the night of Saturday June 29th, 2024, a shallow and strong MAG-6.1 aftershock hit in the South Pacific Ocean 325 kilometer from Arequipa, Peru. Shaking may have been felt by a total of 340 thousand people.

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Earthquake Summary

This earthquake hit under water in the South Pacific Ocean, 30 kilometers (19 mi) off the coast of Peru, 325 kilometer west of Arequipa. The center of this earthquake had a very shallow depth of 18 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Jun 29, 2024 02:05 (Lima Time)
- Jun 29, 2024 07:05 Universal Time.
Location: 325 km west of Arequipa, Peru.
Coordinates 16°2'55"S 74°33'22"W.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 6.1
Detected by 28 stations. Maximum Error Range ±0.059 .
Depth: 18 km (11 mi)
A very shallow depth.
Max. Intensity:
VI
Strong

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 100% likelyhood of between 0 and 1 million US Dollars in economic damage and impact.

Roughly 340 thousand people exposed to shaking

The USGS has published a report estimating the number of people exposed to this earthquake. Acoording to their analysis, roughly 340 thousand have been exposed to shaking at an MMI level of II or higher.

The highest earthquake impact level for this earthquake is VI, which corresponds with strong shaking and probably light damage. Roughly 1,530 people are expected to be exposed to this level. Intensity level IV was experienced by the majority of people (around 200 thousand). In their region, light shaking and likely no damage can be expected. All exposure to shaking was within the borders of Peru .

People MMI Level Shaking Damage
0
I
Not noticable None
0
II
Very weak None
118,700
III
Weak Probably none
199,700
IV
Light Likely none
20,980
V
Moderate Very light
1,530
VI
Strong Light
0
VII
Very Strong Moderate
0
VIII
Severe Moderate to heavy
0
IX
Violent Heavy
0
X
Extreme Very heavy

Nearby towns and cities

This earthquake may have been felt in Peru . Located 110 kilometer (68 mi) south-southeast of the epicenter of this earthquake, Minas de Marcona (Ica, Peru) is the nearest significant population center. The intensity of shaking and damage in Minas de Marcona is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).

Multiple major population centers exist within 300km of the earthquake that struck today. Arequipa is located 325 km to the east (intensity unknown, possibly low). Ica is located 254 km to the north-northwest (intensity unknown, possibly low). Cusco is located 395 km to the north-east (intensity unknown, possibly low).

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

Distance Place Intensity (MMI)
110 km (68 mi)
NNW from epicenter
Minas de Marcona

Ica, Peru.
IV
Light
141 km (88 mi)
NNW from epicenter
Nazca

Ica, Peru.
IV
Light
207 km (129 mi)
ESE from epicenter
Camaná

Arequipa, Peru.
IV
Light
254 km (158 mi)
NNW from epicenter
Ica

Ica, Peru.
255 km (158 mi)
E from epicenter
El Pedregal

Arequipa, Peru.
292 km (181 mi)
ESE from epicenter
Mollendo

Arequipa, Peru.
294 km (183 mi)
NNE from epicenter
Andahuaylas

Apurímac, Peru.
315 km (196 mi)
NNW from epicenter
San Clemente

Ica, Peru.
315 km (196 mi)
NW from epicenter
Pisco

Ica, Peru.
319 km (198 mi)
E from epicenter
Cono Norte

Arequipa, Peru.
323 km (201 mi)
NNE from epicenter
Abancay

Apurímac, Peru.
323 km (201 mi)
N from epicenter
Ayacucho

Ayacucho, Peru.
324 km (201 mi)
E from epicenter
Jacobo Hunter

Arequipa, Peru.
325 km (202 mi)
E from epicenter
Arequipa

Arequipa, Peru.
325 km (202 mi)
E from epicenter
Selva Alegre

Arequipa, Peru.
326 km (203 mi)
E from epicenter
Ciudad Satelite

Arequipa, Peru.
339 km (211 mi)
NNW from epicenter
Chincha Alta

Ica, Peru.
348 km (216 mi)
N from epicenter
Huanta

Ayacucho, Peru.
365 km (227 mi)
ENE from epicenter
Yauri

Cusco, Peru.
366 km (227 mi)
N from epicenter
Huancavelica

Huancavelica, Peru.
381 km (237 mi)
NNW from epicenter
Nuevo Imperial

Lima Region, Peru.
385 km (239 mi)
ESE from epicenter
Ilo

Moquegua, Peru.
385 km (239 mi)
NNW from epicenter
Imperial

Lima Region, Peru.
385 km (239 mi)
NNW from epicenter
San Vicente de Cañete

Lima Region, Peru.
394 km (245 mi)
NE from epicenter
Santiago

Cusco, Peru.
395 km (245 mi)
NE from epicenter
Wanchaq

Cusco, Peru.
395 km (245 mi)
NE from epicenter
Cusco

Cusco, Peru.
Cities and Towns around the epicenter of this earthquake.

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 VI.

I Not felt
II Weak
III Weak
IV Light
V Moderate
VI Strong
VII Very Strong
VIII Severe
IX Violent
X Extreme
Earthquake Intensity Map based on Shakemap Data provided by USGS.

Shaking reported by 11 people in 2 countries

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 11 people have reported shaking in 6 places in 2 countries (Chile, Peru).We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

  • Acarí, Arequipa, Peru: 6 people.
  • Vicuña, Coquimbo, Chile: 1 person.
  • Arequipa, Arequipa, Peru: 1 person.
  • Lima, Lima Provincias, Peru: 1 person.
  • Ica, Ica, Peru: 1 person.
  • Vista Alegre, Ica, Peru: 1 person.

This is likely an aftershock

Approximately 1 day before this earthquake hit, a larger 7.2 magnitude earthquake struck 27 km (17 mi) north-northeast of this one. For that reason, we classify the Mag. 6.1 earthquake as an aftershock.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Main Shock M 7.2 Jun 28, 2024 00:36
(Lima Time)
-
Aftershock M 4.7 16 mins later
Jun 28, 2024 00:52 (Lima Time)
32 km (20 mi)
WSW from Main Shock.
Aftershock M 4.3 34 mins later
Jun 28, 2024 01:10 (Lima Time)
16 km (10 mi)
NNW from Main Shock.
Aftershock M 4.0 50 mins later
Jun 28, 2024 01:26 (Lima Time)
26 km (16 mi)
SW from Main Shock.
Aftershock M 4.4 1 hr later
Jun 28, 2024 02:05 (Lima Time)
35 km (22 mi)
WSW from Main Shock.
Aftershock M 4.4 2 hrs later
Jun 28, 2024 02:26 (Lima Time)
34 km (21 mi)
SW from Main Shock.
Aftershock M 4.3 7 hrs later
Jun 28, 2024 07:07 (Lima Time)
30 km (19 mi)
W from Main Shock.
Aftershock M 4.5 8 hrs later
Jun 28, 2024 08:26 (Lima Time)
36 km (22 mi)
SW from Main Shock.
Aftershock M 4.0 19 hrs later
Jun 28, 2024 19:22 (Lima Time)
15 km (9 mi)
W from Main Shock.
Aftershock M 4.2 1 day later
Jun 29, 2024 01:46 (Lima Time)
20 km (12 mi)
WSW from Main Shock.
Aftershock
This Earthquake
M 6.1 1 day later
Jun 29, 2024 02:05 (Lima Time)
27 km (17 mi)
SSW from Main Shock.
Aftershock M 5.4 1 day later
Jun 29, 2024 02:22 (Lima Time)
21 km (13 mi)
SSW from Main Shock.
Aftershock M 5.3 1 day later
Jun 29, 2024 02:22 (Lima Time)
41 km (25 mi)
SSE from Main Shock.
Aftershock M 4.3 1 day later
Jun 29, 2024 04:54 (Lima Time)
22 km (14 mi)
SW from Main Shock.
Aftershock M 4.2 1 day later
Jun 29, 2024 05:09 (Lima Time)
25 km (15 mi)
S from Main Shock.
Aftershock M 4.1 1 day later
Jun 29, 2024 06:18 (Lima Time)
23 km (14 mi)
SSE from Main Shock.
Aftershock M 4.2 1 day later
Jun 29, 2024 07:24 (Lima Time)
51 km (32 mi)
WSW from Main Shock.
Aftershock M 4.1 3 days later
Jul 1, 2024 04:23 (Lima Time)
84 km (52 mi)
W from Main Shock.
Aftershock M 4.0 3 days later
Jul 1, 2024 07:36 (Lima Time)
10 km (6 mi)
WSW from Main Shock.
Aftershock M 4.3 4 days later
Jul 1, 2024 21:45 (Lima Time)
24 km (15 mi)
W from Main Shock.
Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.

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.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this earthquake.

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this are common in the region

Earthquakes of this strength occur quite regularly in the region. In total, 5 earthquakes with a magnitude of 6.1 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 years.

Low tsunami risk

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

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

Factor Under Sea? MAG-6.5 or stronger? Shallow depth?
Explanation Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. Under MAG 6.5: Very unlikely to cause a tsunami.
MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes.
MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake This earthquake appears to have struck under the sea. Not this earthquake.
This earthquake had a magnitude of 6.1. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 18 km (11 mi). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 18/07/24 02:08 (). 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 us6000n948
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240629_0000084
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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