All articles tagged with #usgs
Ground around Yellowstone’s northern caldera has risen about an inch over a 20-mile area since July, a deformation linked to deep magma movement. Scientists say this is normal activity for the hotspot and not a sign of an imminent eruption, noting Yellowstone hasn’t erupted in about 70,000 years. Public reporting and USGS footage emphasize there’s no eruption threat at this time.
USGS scientists report a roughly one-inch uplift over a 19-mile area near Yellowstone’s Norris Geyser Basin, likely due to deep magmatic activity about 10 miles beneath the surface. It’s considered part of the Norris Uplift Anomaly and does not indicate an imminent eruption of the park’s supervolcano. A separate Yellowstone study found deep-borehole microbes spike around earthquakes, revealing subsurface life dynamics with implications for life-detection on other worlds. In short, Yellowstone stays geologically active, but a cataclysmic eruption is not expected soon.
Multiple earthquakes, including a 4.2-magnitude quake, hit the Bay Area as Super Bowl LX week begins, with epicenters in San Ramon near Levi’s Stadium. No injuries or major damage reported, Bart delays noted, and Patriots and Seahawks players arrived in San Jose for events ahead of kickoff.
A magnitude-4.2 earthquake (following a 3.9 and a series of tremors) was felt in Santa Clara on Monday morning as Super Bowl 60 preparations pick up at Levi's Stadium; the U.S. Geological Survey notes a depth of about 9.4 kilometers, with ESPN confirming the tremor felt in town and noting that the area has experienced multiple tremors in recent months.
A 3.8-magnitude earthquake near Ohlman, Illinois, occurred at about 1:27 a.m. Tuesday, roughly 5.5 miles underground and about 90 miles northeast of St. Louis. No damage was reported, but tremors were felt across the Metro East and into Missouri, and USGS encouraged residents to submit Did You Feel It reports to aid assessments.
A magnitude-4.9 earthquake centered about 12 miles northeast of Indio rattled Southern California Monday evening, with several aftershocks reported (the largest around 3.5 magnitude) and no immediate damage or injuries. USGS had initially listed a higher magnitude before upgrading to 4.9, and officials warned more aftershocks may occur in the coming days, though the chance of a larger quake is small. Millions reportedly received alerts seconds before the quake.
A magnitude 4.7 earthquake shook Northern California near Susanville, causing moderate shaking locally and light shaking as far as Sacramento and Klamath Falls, with no reports of damage. The quake occurred at a depth of 3.4 miles and was part of the region's typical seismic activity.
San Ramon experienced a series of at least nine earthquakes, with the largest being a 4.0 magnitude, due to complex fault interactions and fluid infiltration in the area, which has been hit by nearly 150 quakes in the past month.
The Kīlauea volcano on Hawaiʻi is currently paused but is expected to erupt again between December 22 and 27, with ongoing monitoring indicating a new episode of high lava fountains. The volcano has been erupting episodically since December 23, 2024, with the next episode likely to occur within the forecast window, although the timing may shift based on inflation rates.
The USGS has released a free, detailed 25K Recreational Topo series of topographic maps designed for hikers, bikers, and boaters, emphasizing trails, water sources, and landmarks with a clear, consistent layout, accessible via a web app, and supporting safe outdoor exploration with current data and offline capabilities.
A strong magnitude 6.1 earthquake occurred near Siargao Island in the Philippines on October 17, 2025, at a depth of 69 km, felt by thousands across the region with minimal expected damage and low risk of fatalities, according to USGS estimates.
A recent earthquake felt in Berkeley was near the overdue Hayward Fault, with USGS indicating an 18% chance of aftershocks over magnitude 3 and a 2% chance of larger ones in the next week, raising concerns about a potential significant quake in the region.
A 4.3-magnitude earthquake occurred near Berkeley in the San Francisco Bay Area early Monday morning, with the USGS initially reporting a slightly higher magnitude of 4.6; the quake was felt as a weak shake and may be followed by aftershocks, with data subject to revision as scientists analyze additional information.
A 4.3 magnitude earthquake struck near Berkeley in the San Francisco Bay Area early Monday, causing shaking felt across San Francisco and the East Bay, with no immediate reports of injuries or significant damage.
A magnitude 4.3 earthquake centered in Berkeley shook the San Francisco Bay Area early Monday morning, causing light tremors felt across the region with no immediate damage reported. The earthquake, near the Hayward fault, has a low chance of aftershocks or another quake of similar magnitude in the next week, but highlights the area's seismic risk, especially along the fault known for its potential for a larger quake.