All articles tagged with #usgs
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.
A magnitude 7.8 earthquake occurred off Russia's Kamchatka Peninsula, prompting tsunami advisories for parts of Alaska and Hawaii, but no threat to the U.S. West Coast has been confirmed.
The USGS Hawaiian Volcano Observatory reports that the next episode of lava fountaining at Kīlauea Volcano is likely to begin within the next day or two, with ongoing cyclic gas piston events and lava overflows indicating imminent eruption activity.
A wind-driven event stirred up old ash deposits at Mount St. Helens, creating a plume that resembled an eruption but was harmless, with no signs of renewed volcanic activity.
The US Geological Survey has released the most detailed geologic map of the lower 48 states, created using automated methods and data from over 100 sources, allowing both professionals and the public to explore the country's geological history and features in unprecedented detail.
A magnitude 6.0 earthquake struck southeastern Afghanistan near the Pakistan border, with no immediate reports of damage, following a recent deadly quake in the region.
The Kīlauea volcano's summit eruption remains paused, with a new lava fountaining episode expected between August 18 and 22, most likely around August 19-21. The eruption has been delayed due to decreased inflation rates, and current signs suggest magma is slowly approaching the surface. The USGS maintains a WATCH alert level for the volcano.