Overview
- The British Geological Survey logged a 0.4-magnitude tremor at 7:55am on Sunday, November 2, with an epicentre 5.6 miles (9km) southwest of Rhosneigr at a depth of 17km.
- No on-land impacts or damage were reported, and the event was too weak for most residents to feel.
- Northwest Wales has seen several small quakes in 2025, including a 0.2 near Amlwch in July, a 1.6 at Llwyndyrus in August, and a 0.7 near Llangyndir in September, with Powys also recording multiple recent tremors.
- Elsewhere in the UK, a separate 3.3-magnitude earthquake was felt in Perth and Kinross in late October, according to BGS data.
- News coverage notes major geomagnetic storms this week and cites studies exploring possible solar influences on seismicity, though no direct causal link has been established.