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Geology & Geohazards
Faults, eruptions, tsunamis, and monitoring our dynamic planet.
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90 micro-earthquakes rattle Southern California
5+ hour, 20+ min ago (124+ words) Dozens of earthquakes shook parts of Southern California over the weekend. The phenomenon is called a swarm. The Los Angeles Times said that the swarm of 90 small quakes rattled South Los Angeles on Friday and Saturday. They were all near…...
Dukono Volcanic Ash Advisory: ash plume to 7,000 ft (2,100 m) as of Sep 14, 20:30 UTC
33+ min ago (0+ words) ...
Most precise 3D map ever shows where in LA is at risk from 'The Big One"
1+ hour, 44+ min ago (467+ words) A new 3D map of the Los Angeles basin reveals deep sediments that could intensify shaking in an earthquake. Scientists have a new view of the ground under Los Angeles, and it's a bit shaky. The 3D model of the Los Angeles…...
Moderate magnitude 4.8 quake hits 76 km southeast of Kawasi, Indonesia, early morning
3+ hour, 33+ min ago (0+ words) ...
Korea team maps piston collapse as Tonga volcano triggers massive seafloor drop
12+ hour ago (14+ words) CHOSUNBIZ Chosunbiz...
Barahona volcano, Guatemala: facts & information
18+ hour, 50+ min ago (216+ words) Volcano Discovery Barahona is a complex of two overlapping calderas in Guatemala, northeast of Acatenango and northwest of Agua. Santa Catarina Barahona occupies the floor of the 4.5-km-wide northern caldera, while the southern depression is about 2 km across. Its geological…...
Etna Volcanic Ash Advisory: ash plume to 13,000 ft (4,000 m) as of Sep 14, 04:05 UTC
17+ hour, 18+ min ago (0+ words) ...
Mayon Volcano Volcanic Ash Advisory: ERUPTION AT 20260914/0408Z VA CLD UNKNOWN REPORTED OBS VA DTG: 14/0410Z
16+ hour, 49+ min ago (0+ words) ...
Mount Anak Krakatau Activity Subsides but Eruption Risk Remains High
16+ hour, 49+ min ago (869+ words) September 14, 2026 | 11:44 am TEMPO.CO, Jakarta - Activity at Mount Anak Krakatau in the Sunda Strait, Indonesia, began to show changes following a continuous eruption episode that lasted approximately 25 hours between September 4 and 6, 2026. The volcano's surface activity gradually subsided, shifting into Strombolian…...
Magnitude-4.0 earthquake strikes south of Pahala
17+ hour, 8+ min ago (141+ words) Sunday, September 13, 2026 82° Today's Paper A magnitude-4.0 earthquake struck south of Pahala on Sunday morning, according to the U.S. Geological Survey’s Hawaiian Volcano Observatory. The earthquake occurred at 8 a.m. about 2 miles south of Pahala at a depth of 8 miles…...