December 7, 1903 Tsunami: Northern Chile
A tsunami caused by a magnitude 6.5 earthquake began at Northern Chile on December 7, 1903 at 14:25 UTC. Its effects were recorded at 1 place.
Where the waves reached
The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
Travel times
How long the first wave took to reach each part of the ocean, one line for each hour up to 24, estimated from the source and the depth of the sea.
The travel times are computed in your browser, which needs JavaScript.
- 1 to 4 hours
- 5 to 6 hours
- 7 to 14 hours
- 15 hours and more
Computed in your browser the way NOAA’s own travel time maps are: the wave travels at the square root of gravity times the depth, over NOAA’s ETOPO1 depths averaged to a 10 arc-minute grid. Checked against NOAA NCEI’s maps for 21 tsunamis over the first 24 hours, these lines fall within 10 minutes of NCEI’s at half the points compared and within 52 minutes at 9 in 10. They give when the first wave could arrive, not how high it is; bays, harbors and island chains finer than the grid can see it later. Not for use in a warning: see tsunami.gov.
The tsunami
- Date
- December 7, 1903, 14:25 UTC
- Source
- Northern Chile
- Cause
- Earthquake
- Earthquake
- Magnitude 6.5
- Runups recorded
- 1
- Waters
- Ocean
- How certain
- Probable tsunami
- Source location
- 28.500° S, 71.000° W
The toll
- Deaths
- Few (about 1 to 50) with the earthquake or eruption that caused it
- Damage
- Moderate (about $1 to $5 million) with the earthquake or eruption that caused it
- Houses destroyed
- Some (about 51 to 100) with the earthquake or eruption that caused it
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
December 7, 1903, 10:09 [local time], 28.5 S, 71 W, magnitude 6.5 MS, tsunami validity likely. There was an earthquake in Chile, felt at least from Santiago in the south to Taltal in the north and La Rioja and Mendoza (Argentina) in the east, and particularly at La Serena (strongly), Caldera, and at the lighthouse on Tortuga Cape. It was felt at San Fernando. Aftershocks were registered. At Vallenar, the earthquake was very strong, accompanied by a rumbling and lasted more than a minute. Not a single home was left untouched. The residents panicked; the railway was damaged. The earthquake was also strong at Freirina where some buildings were damaged. Several walls collapsed at Huasco. The sea was very agitated. (reference #415)
December 7, 1903, 15:09 UTC, 28.5 S, 71 W, magnitude 6.5. (reference #164)
December 7, 1903, 15:09 UTC, 28.5 S, 71 W, magnitude 6.5, runup height 0.7 m. (reference #552)
Every runup
Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.
| Where | Country | Km from source | Water height, m | Inland, m | Measured by | First wave, UTC | Deaths |
|---|---|---|---|---|---|---|---|
| Huasco | Chile | 22 | Eyewitness observation of water height |
More
Every tsunami in 1903The 1900sTsunamis of ChileThe earthquakeThis day in weather historyAlerts in force
Sources
Tsunami events and runups from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI tsunami event 1307.