Alaska earthquake

Following the earthquake, ground near Turnagain Arm subsided , water intruded, trees died.

The Great Alaska Earthquake began at 5:36 P.M. AST on Friday, March 27, 1964. Across south-central Alaska, ground fissures, collapsing buildings, and tidal waves directly caused about 130 deaths.
Lasting nearly five minutes, it was the most powerful recorded earthquake in U.S. and North American history, and the third most powerful ever measured by seismograph; it had a moment magnitude of 9.2 and registered 8.4 on the Richter scale.--Wikipedia