The Athens Geodynamic Institute says an earthquake with a preliminary magnitude of 6.3 has struck near the Greek island of Rhodes. Local media say one woman was killed when she slipped and fell as she tried to flee her home.

The Geodynamic Institute says the quake struck at 6:26 a.m. Tuesday about 275 miles southeast of Athens, beneath the seabed south of Rhodes. The earthquake did not cause any major damage.

Residents and tourists fled their homes and hotels in panic. Local media say a 56-year-old woman died when she struck her head after slipping on a staircase as she tried to flee.

The U.S. Geological Survey gave the magnitude as 6.4. Magnitudes often differ in the first hours and days after an earthquake.