According to IPMA, an earthquake measuring 2.7 on the Richter scale with an epicenter about four kilometers east of Serreta, on the island of Terceira, was felt at 12:29 pm today (1:29 pm Lisbon time).
The Portuguese Institute of the Sea and Atmosphere (IPMA) reports that the incident did not cause personal or property damage and was felt at maximum intensity III/IV on the modified Mercalli scale in the parish of Raminho in Terceira.
On the Richter scale, earthquakes are classified by magnitude into micro (less than 2.0), very small (2.0-2.9), small (3.0-3.9), weak (4.0-4.9), moderate (5.0-5.9). ), strong (6.0-6.9), large (7.0-7.9), important (8.0-8.9), exceptional (9.0-9.9) and extreme (when higher 10).
The Modified Mercalli Scale measures “degree of intensity and corresponding description.”
At intensity III, considered weak, the shock is felt inside the house and hanging objects sway, feeling “a vibration similar to that caused by heavy vehicles passing by,” IPMA says on its website.