Tag

Usgs

All articles tagged with #usgs

world11 days ago•203 min saved

Indonesia hit by 7.7 quake sparking local tsunami warning

Indonesia issued a local tsunami warning after a 7.7-magnitude earthquake near Flores Island, followed by three aftershocks (5.9, 5.6, 6.1). Authorities urged coastal residents to move to higher ground and avoid beaches, while Australia reported no tsunami threat for now. The USGS warned casualties and damage are possible, with about 500,000 people exposed to very strong shaking; Indonesia sits on the Ring of Fire and has a history of major quakes, including the 2004 Sumatra disaster.

via CNN|

#earthquake #flores-island #indonesia

science11 days ago•4 min saved

Bay Area’s Hayward Fault: a ticking time bomb for a major earthquake

Experts warn the Hayward Fault near the Bay Area is overdue for a major quake; recent 3.8 temblor near Oakland and aftershocks highlight its volatility, while simulations show a magnitude-7 rupture could produce significantly stronger shaking across the region. USGS estimates a 14.3% chance of a 6.7+ quake by 2034 and about 33% before 2043. A major rupture could bring hundreds of fires, tens of thousands of destroyed homes, and hundreds of thousands displaced, though no major damage was reported in Thursday’s quake.

via New York Post|

#bay-area #earthquakes #ground-shaking

science13 days ago•8 min saved

Yellowstone Eruption: Not Doomsday, But Real Localized Risk

Yellowstone sits over a volcanic hotspot and is active, but the USGS says another supereruption is unlikely. If it erupts again, the most probable outcome would be a localized lava flow with possible ash, or a hydrothermal explosion; a full-scale supereruption could devastate nearby areas and potentially affect climate, but such an event is extremely unlikely. Current monitoring shows normal alert levels with background earthquakes, and any major eruption would come with warning signs.

via Interesting Engineering|

#ash #eruption #science

science17 days ago•5 min saved

Magma Chemistry Hints at Potential Return of Taller Kilauea Lava Fountains

USGS scientists link rising lava fountain heights at Kilauea to magma differentiation and chemistry, especially MgO and olivine changes, suggesting a possible new growth phase as magma supply shifts; episode 44 brought a dip with new olivine, followed by renewed increases in episodes 46–48, amid a paused summit eruption and deflation that may affect timing of taller fountains.

via Big Island Video News|

#fountain-heights #kilauea #magma-chemistry

science18 days ago•2 min saved

New Kilauea Crack Sparks Intermittent Flames as Eruption Pauses

A new crack upslope of Kilauea's south vent is producing intermittent large flames while the eruption remains paused; the north vent glows, summit inflation continues, and a lava fountaining episode is forecast around August 8–12. USGS reports flames result from gas pistoning during tremor (about 3–5 times per hour) and maintains Advisory/Yellow alerts.

via Big Island Video News|

#hawaii #kilauea #lava-fountaining

world23 days ago•2 min saved

Egypt hit by 5.3-magnitude quake, Cairo feels tremors

A magnitude 5.3 earthquake struck near Suez in northeastern Egypt at a shallow 10 km depth, causing strong shaking near the epicenter and widespread tremors, including in Cairo, around 3 a.m. local time; no immediate reports of damage or injuries were provided.

via bnonews.com|

#cairo #earthquake #egypt

world23 days ago•0 min saved

Egypt hit by 5.3-magnitude quake near Suez; no injuries reported yet

A 5.3 magnitude earthquake struck Egypt near Suez, with the epicenter about 41 km northeast of the city; there are no reports of damage or injuries at this time, and the situation is developing.

via Egyptian Streets|

#earthquake #egypt #natural-disaster

science24 days ago•3 min saved

Fiber-Optic Cables Become Earthquake Detectors, Boosting Early Warnings

USGS researchers demonstrate that existing fiber‑optic networks can act as distributed acoustic sensing seismometers, predicting magnitude-5.4+ earthquakes about four seconds after initial waves with roughly 79% accuracy—significantly better than ShakeAlert’s ~30% precision. The study used cables between Arcata and Eureka, California (Cal Poly Humboldt collaboration) and suggests broadband infrastructure expansion could improve early warning, including for remote or coastal regions and tsunami monitoring.

via Gizmodo|

#distributed-acoustic-sensing #earthquake #fiber-optics

world1 month ago•3 min saved

Borderquake: Strong 7.3 tremor rattles Mexico-Guatemala with few injuries

A 7.3 magnitude earthquake struck off the southern Mexican coast near the Guatemala border, felt from Mexico City to El Salvador; no major damage reported, with two injuries in southern Mexico, several aftershocks, and tsunami warnings issued but no confirmed waves.

via ABC7 Los Angeles|

#aftershocks #earthquake #guatemala

world1 month ago•6 min saved

Powerful 7.3-magnitude quake shakes Mexico’s Pacific coast

The USGS reports a 7.3-magnitude earthquake in the North Pacific about 30 miles southwest of Aquiles Serdán, Mexico; aftershocks have been detected and the magnitude may be revised as data is analyzed, with shake-intensity maps updated accordingly.

via The New York Times|

#aftershocks #earthquake #mexico

science1 month ago•1 min saved

Kīlauea Pauses as USGS Forecasts Lava Fountaining Episode 51 for July 9–13

Kīlauea's summit eruption remains paused while inflation continues; USGS expects lava fountaining episode 51 to occur between July 9 and July 13, though the date could shift with inflation/deflation, and observers report persistent glow from the vents, low tremor, rising tilt, and SO2 emissions around 1,000–5,000 tonnes per day.

via Big Island Video News|

#inflation #kilauea #lava-fountaining

local1 month ago•26 min saved

Oregon coast shaken by offshore 5.5 magnitude quake; no tsunami threat

A magnitude 5.5 earthquake occurred in the Pacific Ocean off the southern Oregon coast near the Blanco Fracture Zone, about 175 miles southwest of Eugene, at a depth of roughly six miles. No coastal residents reported feeling it, and the National Weather Service says there is no tsunami threat.

via KATU|

#blanco-fracture-zone #earthquake #local

science2 months ago•6 min saved

Yellowstone Sprouts a New Boiling Pool After Ground Shifts in Biscuit Basin

A new, actively boiling pool formed in Yellowstone's Biscuit Basin between June 14–16 after a hydrothermal explosion on June 13. The pool measures about 6.5 by 5.3 meters and sits above an 18.5-meter-long crack, with jets spouting up to 6–9 meters observed on June 18, indicating ongoing activity. Scientists captured video of the eruption and conclude the event likely resulted from ground collapse rather than a larger explosion, though it underscores the park's dynamic, hazardous hydrothermal system and is smaller than the 2024 eruption. No injuries were reported.

via ScienceAlert|

#biscuit-basin #geothermal #hydrothermal

world2 months ago•18 min saved

Twin earthquakes strike Venezuela as Caracas braces for aftershocks

Two back-to-back earthquakes—7.2 and 7.5 magnitudes—rocked Caracas, causing collapsing buildings and prompting a state of emergency as Venezuela mobilizes hundreds of rescuers; authorities warn of potentially high casualties, urge evacuation of damaged structures for gas-safety reasons, and monitor aftershocks with international agencies following the crisis.

via BBC|

#caracas #earthquake #emergency

earth-science2 months ago•17 min saved

Yellowstone’s Biscuit Basin Sparks Fresh Steam Vents After Tiny Hydrothermal Burst

A small hydrothermal explosion at Biscuit Basin, Yellowstone, on June 13, 2026, created multiple new vents and steam-filled pools, with hot water reaching the Firehole River at about 194°F (90°C). By June 18 a new ground feature had become a vigorously boiling pool roughly 21 by 17 feet, and close-range monitoring captured this eruption on cameras about 100 meters away. The incident, following a larger 2024 blast, underscores the unpredictable, hazardous hydrothermal activity in the region and the ongoing need for monitoring to identify potential precursors.

via Gizmodo|

#biscuit-basin #earth-science #geology