Historical tsunamis · May 25, 1751, 5:30 AM UTC

1751 Central Chile tsunami

Chile

The tsunami of May 25, 1751, 5:30 AM UTC originated near Central Chile (Chile).

Key facts

Date
May 25, 1751, 5:30 AM UTC
Cause
Earthquake
Magnitude
M8.5
Maximum documented water height
3.50 m
Deaths
65
Houses destroyed
many (about 101–1,000)
Damage
severe (about US$ 5–25 million)
Observation records
7
Countries affected
3

It was triggered by a magnitude 8.5 earthquake.

The highest documented water height was 3.50 m (Old Concepcion (Now Penco), Chile).

7 observation sites in 3 countries are recorded.

The database records 65 deaths.

Houses destroyed: many (about 101–1,000).

Damage is estimated at severe (about US$ 5–25 million).

Map of observation sites

7

Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.

Observations by country

CountryObservation recordsMaximum documented water heightDeathsEarliest arrival
Chile33.50 m
Old Concepcion (Now Penco)
65—
Japan32.00 m
Kesennuma
——
Peru1———

Highest documented water heights

7 / 7

Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.

Location / stationObserved heightDistance from sourceCountry
Old Concepcion (Now Penco) · Biobio3.50 m30 kmChile
Kesennuma · Miyagi2.00 m16,996 kmJapan
Ojika Peninsula · Miyagi2.00 m16,992 kmJapan
Otsuchi · Iwate2.00 m16,972 kmJapan
Callao · Callao—2,795 kmPeru
Juan Fernandez Islands · Valparaiso (Juan Fernandez)—650 kmChile
Valparaiso · Valparaiso—457 kmChile

Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.