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An earthquake is caused by a sudden slip on a fault. Tectonic plates are always slowly moving, but they can get stuck at their edges due to friction.When the stress on the edge of a tectonic plate overcomes the friction, there is an earthquake that releases energy in waves that travel through the Earth's crust and cause the shaking that is felt.
Hurricane Floyd was a destructive hurricane that hit North Carolina and New Jersey during the 1999 Atlantic hurricane season. The image above was taken of Floyd near its peak intensity, and because the image is so striking, it has often been attributed to other, more recent destructive storms such as Hurricane Jeanne and Hurricane Katrina .
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
DeHart explains the missions are ideal for the weaker, more uncertain storms. While the X pattern may resemble the Alpha pattern, it is flown at much lower altitudes, usually around 500 to 1,000 feet.
Common developmental patterns seen during tropical cyclone development, and their Dvorak-assigned intensities. The Dvorak technique (developed between 1969 and 1984 by Vernon Dvorak) is a widely used system to estimate tropical cyclone intensity (which includes tropical depression, tropical storm, and hurricane/typhoon/intense tropical cyclone intensities) based solely on visible and infrared ...
The central dense overcast (CDO) pattern is one of those patterns. The central dense overcast utilizes the size of the CDO. The CDO pattern intensities start at T2.5, equivalent to minimal tropical storm intensity, 40 mph (64 km/h). The shape of the central dense overcast is also considered.
Fairly soon, though, after Sept. 10, several weather patterns start to interrupt the ability of tropical storms and hurricanes to form. First, air temperatures begin to decline, and cold fronts ...
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.