Historic Tsunami

2025 United States of America Tsunami

10 August 2025 · Tracy Arm, Ak · United States of America

On 10 August 2025 at 13:26 UTC, a tsunami formed near Tracy Arm, Ak, United States of America. It was caused by a landslide. Waves reached up to 481.0 m high. It was observed at 178 locations. It is the 2nd highest of the tsunamis recorded since 1900.

Date

10 August 2025

Time

13:26 UTC

Cause

Landslide

Highest Wave

481.0 m

Observation Sites

178

Furthest Reach

94 km

Source Country

United States of America

Highest Waves

• 481.0 mTracy Arm, Ak · United States of America · 3 km
• 97.2 mTracy Arm, Nsgl · United States of America · 9 km
• 91.8 mTracy Arm, Nsgl · United States of America · 9 km
• 91.4 mTracy Arm, Nsgl · United States of America · 9 km
• 88.5 mTracy Arm, Nsgl · United States of America · 9 km
• 88.4 mTracy Arm, Nsgl · United States of America · 9 km
• 85.7 mTracy Arm, Nsgl · United States of America · 9 km
• 80.0 mTracy Arm, Nsgl · United States of America · 9 km
• 79.5 mTracy Arm, Midarm · United States of America · 5 km
• 78.7 mTracy Arm, Nsgl · United States of America · 9 km

Other Major Tsunamis in the Region

• 2022Ecstall River, Bc, Canada · 170.0 m
• 1994Skagway, Ak, United States of America · 9.0 m1 deaths
• 1963Graham Island, British Columbia, Canada · 5.5 m1 deaths
• 1958Se. Alaska, Ak, United States of America · 524.6 m5 deaths
• 1917Taku Inlet, Juneau, Ak, United States of America · 2.4 m1 deaths
• 1900Lituya Bay, Ak, United States of America5 deaths

Sources: NOAA National Centers for Environmental Information, Global Historical Tsunami Database (doi:10.7289/V5PN93H7) · Natural Earth