Although the intensity of the quake was fairly significant, specialists reported that earthquakes of such magnitude do not release nearly enough seismic energy to prevent a major earthquake from occurring in the region.

This earthquake released a seismic moment of 4.86x10 Nm.

Experts do not consider it likely that the earthquake significantly released strain that is thought to have accumulated along the San Andreas Fault.

Hence, earthquakes with magnitudes about 7 since 1926 in this area only had released part of the accumulated energy.

Before they can return to the runabout, however, an earthquake releases volcanic gases into the air.

An earthquake comes and releases a poisonous gas that kills everyone.

Tornados or earthquakes, by damaging factories or storage facilities, can release contaminants where people live or into the environment.

For example, a 5.0 earthquake releases 10 times and a 6.0 releases 100 times the energy of a 4.0.

What would happen, Ms. Nielson asked, if an earthquake hit the area and released some nerve gas, and forced an evacuation?