Last Tuesday afternoon (11/11), three earthquakes were detected within 30 minutes in the Jacobina region of northern Bahia. According to information from the Brazilian Seismological Network (RSBR), the tremors were close to each other and were recorded over a short period of time, but they were small and unnoticeable to residents.
The first event was photographed at 2:43 pm (Brasilia time) and had a magnitude of 1.3. A few minutes later, at 2:53 p.m., sensors recorded the strongest of the series, a magnitude 2.2 earthquake. The last quake occurred at 3:11 p.m. and had a magnitude of 1.7.
The recordings were made by the RSBR observatory and then analyzed by the Institute of Seismology of the Federal University of Rio Grande do Norte (UFRN). The network is coordinated by the National Astronomical Observatory in collaboration with the Ministry of Science, Technology and Innovation, with support from the Brazilian Geological Service.
Prior to these episodes, the last tremor observed in the region was on November 10, also in Jacobina, with a magnitude of 1.7. Experts say earthquakes of this magnitude occur frequently in the country, especially in the northeast, where geological pressures within the Earth’s crust make natural earthquakes more likely.
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The series of earthquakes occurred as other parts of Brazil are facing severe weather events.
November should record new extratropical cyclones driven by cold fronts and atmospheric fluctuations. Projections show that southern and southeastern states will be at increased risk, including Rio Grande do Sul, Santa Catarina, Paraná, São Paulo and Espírito Santo. The state of Minas Gerais also continues to be monitored.
These systems can cause heavy rain, strong winds, and sharp drops in temperature. Meanwhile, the North and Midwest are expected to continue their typical hot and humid pattern for this season.
The low temperatures are expected to continue until the 20th, after which the heat will gradually return.
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