An earthquake measuring 2.5 on the Richter scale was recorded at 19:21 this Tuesday in the Aroca district of Aveiro district, the Portuguese Institute of the Sea and Atmosphere (IPMA) said.
The institute first stated that the earthquake was recorded at the stations of the Mainland seismic network without information that it was felt.
He later specified that the quake’s epicenter was about eight kilometers east of Aroca and that “it was felt with maximum intensity II/III (modified Mercalli scale) in the municipalities of Castro Daire and São Pedro do Sul (Viseu)”.
“This earthquake, according to the information available at the moment, did not cause any personal or material damage,” he added.
According to the institute, “the location of the epicenter of an earthquake is a complex physical and mathematical process that depends on the data set, algorithms and models of seismic wave propagation.”
“Different departments may give somewhat different results. Similarly, preliminary definitions are usually corrected later by combining additional information. In all cases, always follow the instructions of the civil protection services,” the IPMA says in a note.
Early this morning at 1:49 a.m., an earthquake of magnitude 3.9 on the Richter scale struck, with its epicenter located 98 kilometers south-southwest of Faro.
According to the institute, this shock “with maximum intensity III (modified Mercalli scale) was felt in the Albufeira area.”
Another earthquake of magnitude 3.7 on the Richter scale was recorded on Tuesday morning in the Algarve at 11:17, the epicenter of which was about 50 kilometers south of Olhao, in Faro district, advanced IPMA.
“This earthquake, according to the information available at the moment, did not cause personal or property damage and was felt with maximum intensity III / IV (modified Mercalli scale) in the municipalities of Faro, Loulé and Olhão,” IPMA said.
On Tuesday at 15:47 an earthquake measuring 2.6 on the Richter scale was recorded about eight kilometers west of Évora, according to IPMA.
This earthquake, according to the information available to the IPMA, “caused no personal or material damage and was felt with maximum intensity IV (modified Mercalli scale) in the municipality of Évora.”
“In the municipality of Montemor o Novo (Évora), this was felt even with less intensity,” the statement said.
At intensity II, considered very weak, the shock “is felt by people who are at rest on the upper floors of buildings or in an advantageous position”, while at intensity III, considered weak, the shock is felt in the room, and hanging objects sway, feeling “a vibration like the one that occurs when passing heavy vehicles,” says IPMA on its website.
Maximum intensity IV (moderate) means that the vibration is similar to that caused by passing vehicles, parked cars sway, windows and doors shake, and glass and utensils rattle or rattle.
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 (40-4.9), 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 10).
Author: Portuguese
Source: CM Jornal
I am Michael Melvin, an experienced news writer with a passion for uncovering stories and bringing them to the public. I have been working in the news industry for over five years now, and my work has been published on multiple websites. As an author at 24 News Reporters, I cover world section of current events stories that are both informative and captivating to read.