The Dexes / Coastal Flood, High Surf & Storm Surge / 1293435
Eventdex · Coastal Flood, High Surf & Storm Surge
ADMIRALTY ISLAND
1293435
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Event typeevent_type | Tsunami |
|---|---|
| NOAA NCEI event IDncei_event_id | 1,293,435 |
| Episode IDepisode_id | 207,332 |
| Begin UTCbegin_utc | 2025-08-10T14:26:00+00:00 |
| End UTCend_utc | 2025-08-10T19:30:00+00:00 |
| Statestate | ALASKA |
| County/zone typecz_type | Z |
| County/zone namecz_name | ADMIRALTY ISLAND |
| Deaths directdeaths_direct | 0 |
| Deaths indirectdeaths_indirect | 0 |
| Injuries directinjuries_direct | 0 |
| Injuries indirectinjuries_indirect | 0 |
| Damage cropsdamage_crops | 0.00K |
| Weather forecast office sourcewfo_source | Other Federal Agency |
| Episode narrativeepisode_narrative | USGS and the Alaska Earthquake Center reported that seismic activity was measured at 526am AKDT on the 10th of August in vicinity of Tracy Arm south of Juneau. The seismic measurement had a landslide signature that they recognized and further USGS ground investigations confirmed that a large mass of the mountain fell into the water at the terminus of South Sawyer Glacier, generating a massive tsunami and successive waves that scoured trees and vegetation from both sides of the fjord and Sawyer Island. As a result, a significant amount of debris remained in the fjord and nearby areas for days after the event and disrupted navigation. |
| Event narrativeevent_narrative | The landslide generated tsunami scoured trees and vegetation from Sawyer Island and had an estimated runup height on the opposite side of the fjord of 1500-1600 feet. Kayakers near the entrance of Tracy Arm on Harbor Island had some of their gear swept away by a 15 to 20 foot tidal wave. |
| Yearyear | 2,025 |
Provenance
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Storage: spine