Quake map did you feel it10/2/2023 We will continue to update this story as more information becomes available. The earthquake occurred as the result of strike slip faulting within the shallow crust of the North America plate. The earthquake occurred in the western part of the Centennial Tectonic Belt, an area north of the Snake River Plain that is undergoing southwest-northeast extension. Historic seismicity in the immediate vicinity of the March 31 earthquake is sparse no earthquakes of M5+ have occurred within 50 km of this event over the past 50 years, and the most notable historic seismicity in the region occurred about 100 km to the east on the Lost River fault zone. This was the site of the 1983 M6.9 Borah Peak earthquake (October 28, 1983), which killed 2 in Challis, and resulted in over $12M in damage in the Challis-Mackay area, and which was followed by five other M 5+ events over the following year, and most recently a M5.0 earthquake in January 1950, about 60 km to the east of today’s event. The Maevent is the largest in Idaho since the 1983 Borah Peak earthquake.Įarthquake Frequently Asked Questions (FAQs) The number of aftershocks will drop off over time, but a large aftershock can increase the numbers again, temporarily. The USGS is coordinating its response with the Idaho Geological Survey.Īftershock Forecast Īccording to our forecast, over the next week there is a < 1% chance of one or more aftershocks larger than magnitude 6.5. It is likely there will be smaller earthquakes over the next week, as well, with 5 to 53 magnitude 3 or higher aftershocks. Magnitude 3 and above are large enough to be felt near the epicenter. The event was widely felt, with close to 16,000 "Did You Feel It?" reports thus far submitted, but likely to have low impact. If you just felt an earthquake, even if youre not sure which one it was or even if it is not yet listed from an official. Perceived shaking for the quake was very strong. Report an earthquake you just felt Our AllQuakes monitoring server receives and analyzes hundreds of reports from people who feel an earthquake, helping us to better understand and identify earthquakes around the world. local time, a large earthquake struck about 72 miles northeast of Boise. Estimated Economic Losses Estimated Fatalities Contributed by US 5 Origin Review Status REVIEWED Magnitude 6.9 mww Depth 28.0 km Time 21:38:30 UTC Contributed by US 5 Moment Tensor Fault Plane Solution Contributed by US 5 Finite Fault Cross-section of slip distribution. Clickable Fault Map Alphabetical Fault Index Historical Earthquakes in Southern California. Geological Survey project to collect information about ground shaking following significant earthquakes. During evening rush hour, at roughly 5:52 p.m. Did you feel it The Community Internet Intensity Map is a U.S.
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