May 20, 1673 Tsunami: N. Moluccas Islands, Indonesia
A tsunami caused by a volcano began at N. Moluccas Islands, Indonesia on May 20, 1673.
Where the waves reached
The source of the tsunami. No runup with a place is recorded for it.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
The tsunami
- Date
- May 20, 1673
- Source
- N. Moluccas Islands, Indonesia
- Cause
- Volcano
- Earthquake
- The earthquake
- Runups recorded
- 0
- Waters
- Ocean
- How certain
- Erroneous entry
- Source location
- 1.375° N, 127.520° E
The toll
The record gives no deaths, injuries or damage for this tsunami.
What the record says
NCEI’s account, from the sources it cites.
1673, May 20, is an additional date given for the tsunami of August 12, 1673. (reference #414)
1673, may 20. Near Halmahera. Moderate tsunami. (reference #79)
1673, May 20. Halmahera Island. Moderate sea wave. (reference #132)
1673, May 20. Indonesia, Halmahera Island (1 N, 128 E). Moderate sea wave accompanied an eruption of Gamkonora (01 deg 21 min N, 127 deg 31 min E). Ash falls reported from Manado (01 deg 30 min N, 124 deg 51 min E) on Celebes (02 S, 121 E) and southern Mindanao in the Philippines (reference #40)
More
Every tsunami in 1673The 1600sTsunamis 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 310.