Residents fleeing their homes in Moulay Brahim, a village near the epicenter of the quake, outside Marrakesh, Morocco, on Saturday. “The current tectonic stresses are therefore only part of the story,” Dr. Hubbard said. Historical earthquakes offer few answers to that question, according to Dr. Hubbard. Another challenging detail to study is an earthquake’s depth, Dr. Hubbard said. The shaking from a deeper earthquakes may not be as strong, but it can be felt across a wider swath of the surface, Dr. Hubbard said.

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Persons: Judith Hubbard, ” Dr, Hubbard, ”, Jascha Polet Organizations: Saturday, Earthquakes, San, Cornell University, Geological, Seismological, California State Polytechnic University Locations: Moulay Brahim, Marrakesh, Morocco, Africa, Africa’s, Pacific