Historical tsunamis · Feb 6, 1987, 1:16 PM UTC

1987 E. Honshu Island tsunami

Japan

The tsunami of Feb 6, 1987, 1:16 PM UTC originated near E. Honshu Island (Japan).

Key facts

Date
Feb 6, 1987, 1:16 PM UTC
Cause
Earthquake
Magnitude
M6.7
Depth
48 km
Maximum documented water height
0.10 m
Observation records
3
Countries affected
1

It was triggered by a magnitude 6.7 earthquake at a depth of 48 km.

The highest documented water height was 0.10 m.

3 observation sites in 1 countries are recorded.

Map of observation sites

3

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
Japan30.06 m
Onahama
——

Highest documented water heights

3 / 3

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
Onahama · Fukushima0.06 m70 kmJapan
Ishinomaki · Miyagi0.04 m163 kmJapan
Ofunato · Iwate0.04 m225 kmJapan

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.