Today: 6.1 magnitude earthquake near Severo-Kuril’sk, Sakhalin, Russia
Yesterday: 4.3 magnitude earthquake near Muscoy, California, United States
3.1 magnitude earthquake 32 km from Portola Valley, California, United States
2025-07-31 04:28:00 UTC
UTC time:
Thursday, July 31, 2025 04:28 AM
Your time:
2025-07-31T04:28:00Z
Magnitude Type:
ml
USGS page:
M 3.1 - 31 km SW of Portola Valley, CA
USGS status:
Reviewed by a seismologist
Reports from the public:
235 people
2025-07-31 04:28:00 UTC
3.1 magnitude, 13 km depth
Portola Valley, California, United States
Portola Valley, California, United States
3.1 magnitude earthquake
2025-07-31 04:28:00 UTC
at 04:28
July 31, 2025 UTC
Location:
Epicenter at 37.176, -122.475
32.2 km from
Portola Valley
(20.2 miles)
Depth: 13 km