On February 2, 1428, there was a magnitude 6.7 earthquake in Catalonia, northeastern Spain
A magnitude 6.7 earthquake occurred in the mountains of northern Catalonia in northeastern Spain on February 2, 1428, from 08:00 to 09:00 [local time], which was the main seismic activity in a sequence of seismic activity, with frequent seismic activity beginning on February 23, 1427, and felt earthquakes in March, April, May, June, and December of 1427.
Modern research suggests that the earthquake hit an epicenter of 8 to 9 degrees, caused a large number of monasteries and bell towers to collapse, and caused widespread destruction, and the earthquake is estimated to have killed about 800 people.
February 2, 1703 Earthquake of magnitude 6.7 in L'Aquila, central Italy
On February 2, 1703, a 6.7 magnitude earthquake occurred near L'Aquila in central Italy, which was one of the main earthquakes in the sequence of strong seismic swarm activity in central Italy from January to February 1703, and according to the data at that time, a series of strong earthquakes occurred near Lquila in central Italy between January and February 1703.
The first magnitude 6.7 earthquake occurred at around 19:00 on the evening of January 14, 1703, with an earthquake intensity of 11 degrees, which caused severe damage to a wide area of central Italy, and this earthquake is speculated to have killed between 6240 and 9761 people. A second magnitude 6.2 earthquake occurred at about 14:30 on January 16, 1703, with an estimated intensity of 8 degrees, and rome felt it at the time of the earthquake. A third magnitude 6.7 earthquake occurred at 12:05 on February 2, 1703, this time with a presumed intensity of 10 degrees, which caused a large number of landslides in central Italy, with the number of deaths estimated to be 2,500 to 5,000.
This series of strong earthquakes caused more than 10,000 people to die in total, and was the most deadly strong earthquake in the L'Aquila region of central Italy, and modern seismological research believes that these three earthquakes were caused by 3 different but adjacent seismic faults. The second earthquake occurred because the first 6.7 magnitude earthquake had a further loading effect on the seismic fault that triggered the second magnitude 6.2 earthquake, and the third magnitude 6.7 earthquake may have induced the release energy of the fault of the second magnitude 6.2 earthquake to load the fault in which it is located, which in turn caused the fault to release energy through the earthquake.
Similar phenomena occur frequently in central Italy, such as the magnitude 6.2 earthquake in central Italy on August 24, 2016, the magnitude 5.5 and magnitude 6.1 earthquakes in central Italy on October 26, 2016, the 6.6 magnitude earthquake in central Italy on October 30, 2016, and the 5.7 earthquake in central Italy on January 18, 2017.
February 2, 1816 North Atlantic earthquake of magnitude 8.6
At 04:00 on February 2, 1816, a huge earthquake occurred in the waters between the Azores in the North Atlantic Ocean and Lisbon, Portugal, with a magnitude of between 8.3 and 8.9, and little is known about this earthquake [because the earthquake occurred on the seabed], but the earthquake was felt in Lisbon, Portugal, and the study believes that this earthquake was the largest earthquake in the Atlantic region.
This large earthquake occurred in the eurasian plate and the African plate and the North American plate junction area, according to the recorded earthquake description and calculation at that time, the magnitude of the earthquake should be 8.6 ±0.3 magnitude, the earthquake when the earthquake occurred affected Portugal thousands of kilometers away from the epicenter, in addition to Spain, Serbia, the Netherlands and other places also reported earthquake sensation, close to the epicenter of Madeira island felt a strong earthquake for up to 6 minutes, and the Azores also had a strong earthquake of up to nearly 4 minutes.
However, because the earthquake occurred on the seabed, it was not very destructive to the land, causing at least 12 deaths and at least 6 houses destroyed.
On February 2, 1938, the Banda Sea in Indonesia was a magnitude 8.5 earthquake
On February 2, 1938, at 04:04 [local time] a magnitude 8.5 earthquake occurred in the eastern part of the Banda Sea in Indonesia, which was one of the largest earthquakes ever recorded in the Banda Sea, and the earthquake was felt in the eastern Indonesian province of West Papua, maluku Islands, Sulawesi, East Nusa Tenggara Province, West Nusa Tenggara Province, Java Island, Northern Australia and other regions.
The quake triggered a devastating tsunami in the Banda Sea, reaching a height of about 1.5 meters, with neither the earthquake nor the tsunami causing casualties.