Historical tsunamis · Jul 8, 1730, 8:45 AM UTC
1730 Central Chile tsunami
Chile
The tsunami of Jul 8, 1730, 8:45 AM UTC originated near Central Chile (Chile).
Key facts
- Date
- Jul 8, 1730, 8:45 AM UTC
- Cause
- Earthquake
- Magnitude
- M9.1
- Maximum documented water height
- 8.00 m
- Deaths
- 5
- Houses destroyed
- many (about 101–1,000)
- Damage
- severe (about US$ 5–25 million)
- Observation records
- 16
- Countries affected
- 3
It was triggered by a magnitude 9.1 earthquake.
The highest documented water height was 8.00 m (Old Concepcion (Penco), Chile).
16 observation sites in 3 countries are recorded.
The database records 5 deaths.
Houses destroyed: many (about 101–1,000).
Damage is estimated at severe (about US$ 5–25 million).
Map of observation sites
16Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Chile | 9 | 8.00 m Old Concepcion (Penco) | 3 | — |
 Japan | 6 | 2.00 m Akasaki | — | — |
 Peru | 1 | — | — | — |
Highest documented water heights
15 / 16Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| Old Concepcion (Penco) · Biobio | 8.00 m | 490 km | Chile |
| Valparaiso · Valparaiso | 7.00 m | 56 km | Chile |
| Akasaki · Iwate | 2.00 m | 16,951 km | Japan |
| Monou · Miyagi | 2.00 m | 16,982 km | Japan |
| Motoyoshi · Miyagi | 2.00 m | 16,973 km | Japan |
| Ojika (Onagawa) · Miyagi | 2.00 m | 16,979 km | Japan |
| Oofunato · Iwate | 2.00 m | 16,953 km | Japan |
| Shiogama · Miyagi | 2.00 m | 17,017 km | Japan |
| Almendral · Valparaiso | — | 62 km | Chile |
| Callao · Callao | — | 2,337 km | Peru |
| Colmo · Valparaiso | — | 48 km | Chile |
| Coquimbo · Coquimbo | — | 283 km | Chile |
| Corral · Los Rios | — | 836 km | Chile |
| Pucauquen · Valparaiso | — | 133 km | Chile |
| Talcahuano · Biobio | — | 487 km | Chile |
More tsunamis
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.