M6.4 Earthquake: Southeast of Easter Island

Updated 11:27 UTC · 29 Oct 2026

A magnitude 6.4 earthquake struck southeast of Easter Island at 07:49 UTC on 29 Oct 2026, at a depth of 10 km, reported by USGS. USGS PAGER issued a green alert: little or no damage and a low chance of deaths. USGS did not set a tsunami flag for this quake. No M2.5+ aftershock had been listed within 54 km when this page was updated.

M6.4

Magnitude (USGS)

mww

10 km

Depth

shallow

GREEN

USGS PAGER impact alert

estimated impact

Aftershocks M2.5+ so far

within 54 km

[ fig. 1 ] M6.4 EPICENTRE, AFTERSHOCKS AND PAST QUAKESThis quakeAftershock M5+AftershockPast M6+

USGS · updated 11:27 UTC 2026-10-29Tap a point for details · pinch or ctrl + scroll to zoomTrack this live in the app ›

Nearest places

Hanga Roa, Valparaíso, Chile1,486 km from the epicentre · quake was SE of here · population 3,3041,486 KM
Lebu, Biobío, Chile2,169 km from the epicentre · quake was W of here · population 22,3452,169 KM
Ancud, Los Lagos Region, Chile2,173 km from the epicentre · quake was WNW of here · population 28,0202,173 KM
Castro, Los Lagos Region, Chile2,187 km from the epicentre · quake was WNW of here · population 29,9262,187 KM
Valdivia, Los Ríos Region, Chile2,201 km from the epicentre · quake was WNW of here · population 133,4192,201 KM

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Strongest aftershocks so far

No M2.5+ aftershock listed yet.

Key context

Tectonic setting

East Pacific Rise. This area sits on the fast-spreading ridges of the eastern Pacific, where the Pacific Plate moves away from the Nazca and Antarctic plates. Transform faults that offset the ridge make most of the quakes; they are shallow, remote and seldom stronger than about M7.

The USGS moment tensor shows strike-slip faulting: the two sides of the fault slid sideways past each other.

At 10 km it was a very shallow quake: shallow quakes shake the ground above them hardest, so local damage depends on how close towns are.

Shaking and impact

USGS PAGER estimates the impact from the shaking and the number of people exposed. For this quake it issued a green alert: little or no damage and a low chance of deaths (fatality alert: green, economic loss alert: green). PAGER is an early estimate and can change as reports come in.

USGS had no "Did You Feel It?" reports for this quake when this page was updated; remote and offshore quakes often get none.

Aftershocks

This page counts quakes of M2.5 or more within 54 km after the main shock, from the USGS catalog (last checked 11:27 UTC, 29 Oct 2026): 0 aftershocks so far.

Aftershocks are normal after a quake of this size. They usually become less frequent over days and weeks, but a strong aftershock can still happen, and in a few sequences a later quake is larger. No one can predict their exact time or size; follow the official agency for your area.

Earthquake history within 250 km

Since 1976, USGS lists 115 quakes of M5 or more within 250 km of this epicentre, about 2.3 a year. Since 1900 the same circle had 5 quakes of M6.4 or larger.

Largest earlier quakes within 250 km, USGS catalog since 1900 (M6+).
Magnitude	Place (USGS)	Date	Depth
M6.7	West Chile Rise	2021-02-03	10 km
M6.6	West Chile Rise	1954-07-30	10 km
M6.5	West Chile Rise	1999-12-10	10 km
M6.5	West Chile Rise	1997-05-11	10 km
M6.4	West Chile Rise	2004-04-08	10 km
M6.3	West Chile Rise	2014-05-06	17 km
M6.3	southeast of Easter Island	1985-11-12	10 km
M6.3	West Chile Rise	2007-11-29	10 km

Official information

EMSC (European-Mediterranean Seismological Centre)
USGS event page for this quake (ShakeMap, PAGER, felt reports)
tsunami.gov for US tsunami bulletins

Data status

USGS review status: reviewed. Magnitude type: mww. USGS last updated this event on 29 Oct 2026 at 09:55 UTC. Magnitude, depth and location can still be revised; this page keeps the same address if they change.

Questions and answers

How strong was the earthquake southeast of Easter Island?

USGS measured it at magnitude 6.4 (mww), 10 km deep. Quakes of M6 to 6.9 are classed as strong.

Was there a tsunami?

USGS did not set a tsunami flag for this quake. If you are on a coast and feel strong or long shaking, move to high ground anyway, and follow local officials.

Was the earthquake felt?

USGS had no felt reports when this page was updated. That is common for offshore and remote quakes. If you felt it, you can report it on the USGS event page.

Will there be more aftershocks?

Aftershocks are likely to continue for days to weeks, becoming less frequent over time. So far 0 aftershocks of M2.5+ have been listed. Most sequences do not produce a larger quake, but some do. No one can predict the time or size of the next one; follow EMSC (European-Mediterranean Seismological Centre).

What should I do after a strong earthquake?

Expect aftershocks: Drop, Cover and Hold On when shaking starts again. Check for injuries and damage, stay out of damaged buildings, and use text messages instead of calls so emergency lines stay free. On a coast, move to high ground after strong shaking. Follow your local officials.

Related live pages

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Sources

USGS event page: magnitude, location, ShakeMap, PAGER and Did You Feel It? data for this event. Public domain. Credit: U.S. Geological Survey.
USGS ComCat (FDSN event web service): the USGS earthquake catalog, used for the 30-year counts, history and aftershocks. Public domain. Credit: U.S. Geological Survey.
USGS Geoserve: nearest places to the epicentre.
GeoNames: large-city coordinates, CC BY 4.0.

Page built 11:27 UTC, 2026-10-29. Full list: data sources and method.