Intensified Seismic Activity and Concerns in Santorini: Over 7,700 Earthquakes Recorded

Since January 2023, Santorini has experienced over 7,700 earthquakes, including a significant 5.0 magnitude quake on February 9. Experts are monitoring these events closely, as concerns grow about the potential for larger seismic occurrences. The situation has generated anxiety among local residents and raised alert levels in Israel regarding possible tsunami threats. Historical data underscores the risks associated with seismic activity in the region.

Seismic activity around the Greek island of Santorini has increased significantly since January 26, with over 7,700 earthquakes recorded, including a notable 5.0 magnitude tremor on February 9. This earthquake, which occurred 15 km southwest of Arkessini, Amorgos, heightened concerns about potential larger seismic events following a 5.2 magnitude quake on February 5 that had already alarmed residents and experts alike.

Vasilis Karastathis, Director of the Geodynamic Institute, remarked on a more stable rhythm in the seismic activity, although he acknowledged that the possibility of a more powerful earthquake remains. Meanwhile, residents on Santorini and neighboring islands like Amorgos are visibly anxious, often preparing for emergencies by keeping supplies in their vehicles and evacuating at times due to the persistent tremors.

Professor Panagiotis Karydis emphasized the relevance of the epicenter when assessing potential damage from tremors. He suggested that an earthquake originating from the northeastern part of Santorini could be less destructive than one from the Caldera, even at a lower Richter scale. This observation underscores the significance of geographic factors in seismic impact assessments.

To better understand the escalating seismic activity, experts are installing additional seismographs and planning oceanographic studies. Notably, the tremors have affected not only Greece but also raised concerns in Israel regarding potential tsunami threats, prompting the National Security Council to convene an emergency meeting to evaluate the risks, as reported by blic.rs.

Dr. Efraim Laor assessed the tsunami risk from Santorini, stating that while a tsunami could arise from a significant earthquake, its impact on Israel would be minimal. He explained, “In any case, if an earthquake of more than 6.5 degrees occurs on the island, then there will definitely be a tsunami, but it is not at all certain that it will reach Israel.” This assessment highlights the complexities of tsunami dynamics relative to seismic activity.

Seismologists characterize the region between Santorini and Amorgos as particularly active, noting numerous tectonic faults that contribute to the ongoing seismic events. The historical context adds to the urgency, as a 1956 earthquake measuring 7.7 magnitude caused catastrophic damage in the region, including a tsunami with wave heights reaching nearly 30 meters. Such historical precedents deepen the concern surrounding current activities.

The heightened seismic activity around Santorini, marked by over 7,700 recorded earthquakes since the start of 2023, has prompted significant concern among residents and experts. While experts observe some patterns of stability in the tremors, the potential for larger seismic incidents remains a pressing reality. Emergency preparations are underway in both Greece and surrounding countries, with considerable attention focused on understanding the geological dynamics at play.

Original Source: www.jpost.com