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Moderately damaging earthquakes strike between New York and Wilmington, Delaware, about twice a century, the USGS said, and smaller earthquakes are felt in the region roughly every two to three years.
Surface motion map for a hypothetical earthquake on the northern portion of the Hayward Fault Zone and its presumed northern extension, the Rodgers Creek Fault Zone. A seismic hazard is the probability that an earthquake will occur in a given geographic area, within a given window of time, and with ground motion intensity exceeding a given threshold.
The red dots show larger-magnitude earthquakes in Minnesota, Wisconsin, Michigan's Upper Peninsula and southern Ontario. The earthquake near Minnesota's western "bulge" is the Morris earthquake. This map and table shows where Minnesota's earthquakes have occurred. Earthquakes 1, 6, 9, 11, 15 and 18 are in the Great Lakes tectonic zone.
This is a list of earthquakes in Canada. List. Date Place Lat Lon Deaths Injuries Mag. MMI Comments 2017-05-01 Stikine Region, BC 59.83 −136.70 6.3 VIII
So a 5.0 earthquake is ten times stronger than a 4.0. The magnitude and effect of an earthquake, according to Michigan Technological University: Below 2.5: Generally not felt.
The magnitude of an earthquake isn't enough to determine how much death and destruction it will cause. Location, time of day, building codes and other factors make a big difference.
A particularly dangerous form of slow earthquake is the tsunami earthquake, observed where the relatively low felt intensities, caused by the slow propagation speed of some great earthquakes, fail to alert the population of the neighboring coast, as in the 1896 Sanriku earthquake.
"Natural Disasters News".Ubyrisk. Archived from the original on 2018-11-01 Worldwide news site focused on natural disasters, mitigation and climate changes news "Global Risk Identification Program (GRIP)".