![]() The project, which spanned more than five years and included divers with underwater chain saws to sample trees drowned by the quakes, is a scientific tour de force nearly unprecedented in seismology, said Harold Tobin, director of the Pacific Northwest Seismic Network at the University of Washington. Their results were published Wednesday in the journal Science Advances. and the spring of the following year – almost exactly 1,100 years ago. The team also was able to zero in on the date with stunning precision, narrowing it to a six-month window between the fall of 923 A.D. The Saddle Mountain Fault, which slices across the Olympic Peninsula near Lake Cushman, ruptured at about the same time. Using state-of-the-art tree ring and radiocarbon dating methods, researchers found the most recent major earthquake on the Seattle Fault wasn’t a solo act. ![]() A new study adds another: the possibility of a one-two earthquake punch. A snack is a good idea for longer hikes.SEATTLE – With the Cascadia Subduction Zone parked off the coast and shallow faults lurking under most major cities, the Puget Sound area faces a daunting array of seismic scenarios. At the very least bring: sunscreen, bug spray, a hat, a light jacket and water. The trailhead is located on Boundary Street in West Yellowstone at the end of Madison Avenue.Īlways hike in groups of 3 or more and carry bear spray with you. (About 5.6 miles if you just do the downriver loop, and 7.7 miles if you do both loops.) When you come back to the intersection you can either continue on with the upriver loop or turn right and head back out along the straight section of the trail. (About 3.5 miles round trip.)įor the longest hike, turn left at the intersection and follow the downriver loop. This will circle back around to the point where you started, and you can turn to head back to the straight part of the trail you came in on. (About 2 miles round trip.)įor a medium distance hike, turn right when you get to the intersection and follow the upriver loop. Once you reach the intersection for the loop parts of the trail, turn back. This part is flat and straight and takes you through forest for about a mile. ![]() There are 3 options you can choose for this trail.įor a shorter hike, you can simply go the first part of the trail that takes you to the actual loop. It’s a great option for families and those new to hiking. This easy, kid-friendly, 7.7 mile loop trail takes you to and along the Madison River. But you can visit the well-marked geologic spots along Hwy 287 year round. The visitor center is open daily Memorial Day weekend to September 15th. The visitor center offers educational movies and interpretive displays about the night Quake Lake was formed, education on plate tectonics and earthquakes, plus a working seismograph and gift shop. There are 2 additional stopping points at the West and East Portals to the area which introduce the geologic and human stories, as well as the timeline of the events that unfolded that night. Located just north of West Yellowstone near Hebgen Lake, the Earthquake Lake Geologic Area consists of the Quake Lake Visitor Center plus 5 spots along Hwy 287 which highlight that fateful night’s significant events and remnants of the destruction. On that horrific night, hundreds of visitors camping along the river became trapped and 28 people lost their lives, many of whom were never recovered. On Auga 7.5 magnitude earthquake caused a massive landslide which damned up the Madison River and created Earthquake Lake.
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