The Greek island of Santorini is facing a crisis after a powerful 5.2-magnitude earthquake struck on Wednesday evening. This follows an alarming series of tremors, with experts recording over 6,000 quakes in the Aegean Sea since January 26.

The Greek island has a long history of earthquakes, but what is causing the recent series of quakes has scientists perplexed.

Israel, with its nearly 200-kilometer Mediterranean coastline already fitted with tsunami warning signs, is on high alert. Experts say if a major earthquake on Santorini were to generate a tsunami, Israel would have up to two hours to respond, as it is about 900km away from the quake zone.