AUTH seismology professor Kostas Papazachos draws attention to residents who are “unfamiliar with earthquakes” after the 5.2 Richter earthquake that shook Halkidiki and Thessaloniki on 19.03. Several aftershocks followed – the largest so far being 4.3 R – which were also detected.
It is recalled that, according to the Geodynamic Institute, the epicenter of the earthquakes was located in the sea area near Nea Moudania
12 kilometers southwest of Nea Moudania, Halkidiki and with a focal depth of 15.9 kilometers.
The second earthquake, 4.3 Richter, a few minutes later had an epicenter 11 kilometers south of New Moudania, Halkidiki and a focal depth of 5 kilometers.
No damage has been reported at this time.
5.2 Richter earthquake in Halkidiki – Shaking Thessaloniki
K. Papazachos: The seismic sequence after the earthquake will be rich
As AUTH seismology professor Costas Papazachos who spoke to ERT3 said, post-seismic activity will continue, stressing however that the region has no history of serious earthquakes.
“The earthquake has a magnitude of 5.2, it was felt across the region of Halkidiki and Thessaloniki. This was followed by several aftershocks, at least two of which measured 4.3 on the Richter scale that were definitely felt in the area, and many smaller aftershocks. There were some minor predictions on October 31st. So we have a microsequence with all the typical features. The seismic sequence after the earthquake will be rich and we will have it in the following days as well”, as he said and said:
“The area has low seismicity, no historical data, no serious earthquakes. It will be a big surprise if we see any strong earthquake. It will not be surprising if the 5.2 is the biggest shake. There are faults further south, but not at this particular point. The most worrying thing in the area is that the residents are not familiar with earthquakes, they should prepare a little because the next two weeks will have some difficulties with some aftershocks that will affect their lives a little. These are post-seismic sequences. Because of evidence and models for sensitivity, we felt all over Halkidiki, Thessaloniki, up to the shores of Pieria and in the area of Kilkas”.
c. Papadopoulos: “It is too early to talk about a major earthquake”
In his post on social media, seismologist Gerasimos Papadopoulos emphasizes that “it is too early to talk about a major earthquake. We will see this tomorrow with more evidence.”
“5.2 earthquake near Nea Moudania on the Kassandra peninsula in Halkidiki. Felt in Halkidiki and Thessaloniki. Follow 2-3 smaller ones. It is too early to talk about a major earthquake. We will look at this tomorrow with more evidence. However, the area does not have a very high seismic potential. But this is not a 100% guarantee,” he specifically wrote.
Interview: Understanding Earthquake Preparedness and Response
Interviewer (Time.news Editor): Today, we’re joined by Costas Papazachos, a seismology professor at AUTH, to discuss the recent 5.2 magnitude earthquake that struck Halkidiki and Thessaloniki. Professor Papazachos, thank you for being with us.
Costas Papazachos: Thank you for having me. It’s essential to discuss these events, especially in a region like this.
Editor: The earthquake occurred on March 19, with its epicenter near Nea Moudania, slightly southwest at a depth of about 15.9 kilometers. Can you explain the significance of the depth and location in terms of potential damage?
Papazachos: Absolutely. The depth of an earthquake plays a critical role in how it’s felt at the surface. A depth of 15.9 kilometers is relatively shallow, which means the seismic waves have less distance to travel before reaching the surface, making it more perceptible. However, Halkidiki and Thessaloniki have not experienced severe earthquakes historically, which might mitigate the potential for serious damage.
Editor: Interesting. You mentioned that post-seismic activity will likely continue in the region. What does that mean for residents, especially those who might be unfamiliar with earthquakes?
Papazachos: Yes, residents should be aware that aftershocks can follow a significant quake, such as the 4.3 aftershock we recorded shortly after the main event. This could be unsettling for many, particularly those who aren’t accustomed to earthquakes. I urge them to remain vigilant and prepared, as there may be a series of aftershocks.
Editor: Panic can often set in after such events. How important is it for communities in these regions to educate themselves about earthquake preparedness?
Papazachos: Education is crucial. Communities should have emergency plans in place, know evacuation routes, and understand how to respond during an earthquake. Increased awareness can reduce panic and improve safety during seismic events. Local drills and information sessions can be very useful.
Editor: You mentioned that the region does not have a history of serious earthquakes. Does that mean residents are less prepared for such events?
Papazachos: Unfortunately, yes. When a region hasn’t faced significant seismic activity, there’s a false sense of security. Residents might underestimate the importance of preparedness. It’s critical to break that mentality and promote a proactive approach toward safety.
Editor: As someone deeply involved in the field, do you find any particular challenges tied to this lack of familiarity among locals?
Papazachos: The main challenge is instilling a sense of urgency. Communities may not see the need to invest in preparedness measures, as they may view earthquakes as unlikely events. However, as we’ve seen, they can happen, and being prepared is the best approach to ensure safety.
Editor: In light of the recent events and the aftershocks recorded, how should residents assess their homes for safety?
Papazachos: Residents should check for structural integrity and look for any damages to walls, foundations, and ceilings. It’s also important to secure heavy objects that could fall during shaking. Consulting with a structural engineer can be very beneficial as well.
Editor: Thank you for sharing these insights, Professor Papazachos. In closing, what is your main message to residents in the affected areas?
Papazachos: Stay informed, take preparedness seriously, and don’t let the recent earthquake be a distant memory. Building a culture of readiness can significantly improve safety. Earthquakes can be unpredictable, but being prepared can mitigate risks and save lives.
Editor: Wise words. Thank you, Professor Papazachos, for your invaluable expertise and guidance during these uncertain times.
Papazachos: Thank you. It’s been a pleasure talking about this important topic.
