Earthquake & Volcano Monitor — 2026-07-23
A magnitude 4.4 earthquake struck the Philippine Sea south of Japan on July 22, while a magnitude 4.9 tremor affected southern Peru the same day. Volcanic activity remains relatively stable, with Kīlauea's Halemaʻumaʻu eruption paused and Great Sitkin in Alaska continuing slow lava effusion at ORANGE alert level.
Earthquake & Volcano Monitor — 2026-07-23
Seismic Activity
Philippine Sea Earthquake (July 22)
A moderate magnitude 4.4 earthquake struck approximately 95 km south of Shima in Mie Prefecture, Japan, on Wednesday, July 22, 2026, at 09:48 pm (GMT +9). The epicenter was located in the Philippine Sea region, a tectonically active zone along the subduction boundary.
Peru Earthquake (July 21)
Peru's National Seismic Center reported a magnitude 4.9 earthquake on July 21, 2026, at 21:03:49 local time, with epicenter 129 km south of Tacna. The tremor occurred at a depth of 40 km and registered intensity III in the Tacna region.
Minor Seismic Events
A magnitude 0.8 earthquake was recorded in Western Turkey on July 21 at 10:24 am (GMT +3), and an unconfirmed magnitude 1.5 tremor occurred 24 km east of Delmas, South Africa, on July 22 at 03:34 pm (GMT +2).
Volcanic Watch
Kīlauea, Hawaii — Paused Eruption
The Halemaʻumaʻu eruption at Kīlauea remains paused as of the latest Hawaiian Volcano Observatory update (July 22, 2026). The volcano maintains ADVISORY alert level and YELLOW aviation color code. Current summit elevation stands at 4,091 ft (1,247 m).
Great Sitkin, Alaska — Continued Slow Eruption
Great Sitkin volcano in Alaska continues slow effusion of lava within its summit crater at ORANGE/WATCH alert level, with ORANGE aviation color code assigned. The Alaska Volcano Observatory maintains close monitoring of the ongoing activity.
Sangay, Ecuador — Ash Advisory
Sangay volcano in Ecuador issued a volcanic ash advisory on July 22-23, indicating ash emissions were reported.
Earth Science
No recent earthquake preparation or research articles were available for this reporting period.
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.
Powered by
