An earthquake of magnitude 2.1 on the Richter scale was felt this Monday on the island of Terceira, the Azores Center for Seismic Volcanic Information and Observation (CIVISA) reported.
According to CIVISA, the earthquake was recorded at 01:56 local time (02:56 Lisbon time) and had an epicenter about five kilometers north of Sao Bartolomeu, on the island of Terceira.
“According to the information currently available, an earthquake with a maximum magnitude of III (modified Mercalli scale) was felt in the parish of Terra Cha (municipality of Angra do Heroísmo, Terceira Island),” CIVISA said in a statement.
This event is part of the “ongoing seismic-volcanic crisis on the island of Terceira since June 2022.”
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 more than 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 the passage of heavy vehicles,” the Portuguese Institute of the Sea and the Atmosphere (IPMA) said on its webpage. page.
Author: Lusa
Source: CM Jornal
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