Earthquake & Volcano Monitor — 2026-08-01
A magnitude 5.5 earthquake struck offshore Japan on August 1, while Italy's Phlegraean Fields experienced its strongest quake in years with a 4.7 magnitude event that injured four people. Peru recorded a significant 5.6 magnitude earthquake, and volcanic activity continues at multiple sites including Etna, Sabancaya, and other Pacific Ring of Fire volcanoes.
Earthquake & Volcano Monitor — 2026-08-01
Seismic Activity
Japan—North Pacific Ocean: A strong magnitude 5.5 earthquake struck the North Pacific Ocean approximately 57 km east of Mutsu, Aomori Prefecture, Japan, on Saturday, August 1, 2026, at 11:48 AM local time (GMT +9).
Peru—Ucayali Region: A strong magnitude 5.6 earthquake occurred 14 km east of Pucallpa, Ucayali Department, Peru, on Thursday, July 30, 2026, at 7:58 PM (Lima time).
Italy—Naples Region: A magnitude 4.7 earthquake struck the Phlegraean Fields, a volcanic area near Naples in southern Italy, on July 31, 2026. The quake was the strongest to hit the area in years and injured four people, with damage reported to buildings and churches in the region.
Thursday, July 30 Summary: Global seismic activity on July 30 included multiple tremors worldwide, with reports indicating continuing earthquake swarms in various tectonically active regions.
Volcanic Watch
Sabancaya (Peru): The Instituto Geofísico del Perú reported continuing eruptive activity at Sabancaya volcano during July 20-26. The seismic network detected 53 seismic events related to magmatic fluid movement, with additional earthquakes indicating continued volcanic unrest.
Etna (Italy): Mount Etna produced an eruption on July 30, 2026, at 03:33 UTC, with an ash column reaching 7,000 meters (23,000 feet) altitude. The eruption was actively ongoing according to volcanic ash advisory reports.
Regional Volcano Summary: Widespread volcanic activity continues across the Pacific Ring of Fire and Mediterranean region, with Etna, Stromboli, Santiaguito, Fuego, Krakatau, and Merapi all showing active signatures as of July 31, 2026.
Kīlauea (Hawaii): The Hawaiian Volcano Observatory reports that Kīlauea volcano is not currently erupting; the summit eruption in Halemaʻumaʻu crater paused on July 29, 2026, at 2:36 AM HST, ending Episode 52. The volcano remains at YELLOW/ADVISORY status.
Earth Science
Kikai Caldera—Magma Recharge: Scientists have discovered that Japan's Kikai caldera—one of Earth's most explosive supervolcanoes—appears to be recharging with fresh magma. The volcano produced the largest eruption of the Holocene approximately 7,300 years ago. New seismic surveys suggest fresh magma has likely entered the same underground reservoir that fed that catastrophic eruption, warranting continued monitoring of this submerged volcanic system.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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