1.8 Magnitude Earthquake on the Richter Scale Felt on Terceira Island
An earthquake measuring 1.8 on the Richter scale was felt today on Terceira Island, according to the Azores Seismovolcanic Information and Surveillance Center (CIVISA).
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País CIVISA
The event "is part of the ongoing seismic-volcanic crisis on Terceira Island since June 2022".
According to the Richter scale, earthquakes are classified according to their magnitude as micro (less than 2.0), very small (2.0-2.9), small (3.0-3.9), light (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 greater than 10).
The Modified Mercalli scale measures the "degrees of intensity and respective description".
With an intensity of III, considered weak, the quake is felt indoors and hanging objects swing, perceiving a "vibration similar to that caused by the passage of heavy vehicles", reveals the Portuguese Institute of the Sea and the Atmosphere (IPMA) on its website.
Read Also: Earthquake of magnitude 2.1 on the Richter scale felt on Terceira Island (Portuguese version)
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