First published · Last updated
Magnitude 4.8 earthquake in Puerto Rico (18 Sep 2026)
GDACS reports a magnitude 4.8 earthquake at 7 km depth near Puerto Rico on 2026-09-18 13:19 UTC. Approximately 200,000 people experienced shaking assessed at MMI IV (light).
Categories: severe-weather-and-natural-disasters
Generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- Confidence
- 9/10
- Geographic reach
- 3/10
- Global importance
- 3/10
- Impact magnitude
- 4/10
- Positivity
- 2/10
- Urgency
- 5/10
Why it matters
MMI IV shaking can be widely felt and cause alarm among residents and travelers; shallow depth increases local shaking. While damage is unlikely at this intensity, aftershocks may follow and authorities and responders should monitor for impacts and public safety concerns.

