Tsunamis in 1950

October 8, 1950 Tsunami: Banda Sea, Indonesia

October 8, 1950 · 1 death · Probable tsunami

A tsunami caused by a magnitude 7.6 earthquake began at Banda Sea, Indonesia on October 8, 1950 at 03:23:09 UTC. Its effects were recorded at 2 places. It killed 1 person.

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

Tsunami warnings in force

The tsunami

Date
October 8, 1950, 03:23:09 UTC
Source
Banda Sea, Indonesia
Cause
Earthquake
Runups recorded
2
Tsunami intensity (Soloviev-Imamura)
2
Tsunami magnitude (Iida)
1.5
Waters
Ocean
How certain
Probable tsunami
Source location
3.800° S, 128.300° E

The toll

Deaths
1
Damage
Severe (about $5 to $25 million)
Houses destroyed
Many (101 to 1,000)
Houses damaged
Many (101 to 1,000)

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.

Reference #414:

October 8, 1950. A call for help came from Ambon Island because of a strong earthquake and gigantic tidal wave. A large number of victims was feared. The existence of this great wave (according to press accounts, it had a

height of 200 m [?]) could not be confirmed from the tide gauge records.

Reference #3571:

Radio Amboina sent out a second urgent call for Red Cross help today for victims of Sunday's earthquake and tidal wave, which swept away two coastal villages. The radio is the voice of the rebel South Moluccan government. The broadcast gave no indication of the number of persons affected by the tidal wave but said waves reaching 656 feet inland demolished Galala (population 1,000), near the capital city of Amboina, and the southeast coastal village of Hutumuri (population 2,000).

Reference #7515:

An Ambon radio report reveals that a violent earthquake lasting all day rocked Ambon Island on Sunday. It caused huge tidal waves.

Reference #11611:

The witnesses said that the strong wave destroyed the houses in Hutumuri villages except the church. The wave was about 2-3 metres "All houses collapsed, the chain fence behind the church which was about 2 metres above the ground collapsed. "Before the tsunami came, this village had three parallel streets, the one closest to the beach vanished and the street in the middle (second street) was inundated".

They also said there were three waves that hit Hative Kecil and Galala, " there were three waves that came, the first wave was not too high, the second was the highest, the third was a bit lower. The destructive was the second one that caused all the houses to vanish". "I saw the first water quite high, taking all the houses back to the sea, the second wave brought the big boat to the coast, the third one made everything in the village gone. "There were three waves, one small, second big and the third is the biggest. The wave was as tall as the coconut tree, it was like flood but very strong. It took all the houses in Galala Village, I think there are only 4 houses left in Galala. "All houses were destroyed and that remains here (Hative Kecil Village) only five houses.

There were no victims in Hative Kecil and Galala.

Every runup

Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.

WhereCountryKm from sourceWater height, mInland, mMeasured byFirst wave, UTCDeaths
Hutumuri, Ambon IslandIndonesia12Eyewitness observation of water height1
Galala, Ambon IslandIndonesia17200Eyewitness observation of water height

More

Every tsunami in 1950The 1900sTsunamis of IndonesiaThe 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 1809.