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Both an earthquake and sonic boom shook parts of the Treasure Coast Wednesday night and early Thursday morning.. About three hours apart, the magnitude 4.0 earthquake struck at about 10:48 p.m ...
The sound of a sonic boom depends largely on the distance between the observer and the aircraft shape producing the sonic boom. A sonic boom is usually heard as a deep double "boom" as the aircraft is usually some distance away. The sound is much like that of mortar bombs, commonly used in firework displays. It is a common misconception that ...
Military aircraft surreptitiously creating sonic booms. (This origin does not explain sounds heard before supersonic flight, but could be extended to include military cannon-fire practice.) Earthquakes: Shallow earthquakes can generate sound waves with little ground vibration: The "booming" sound is heard only locally, near the epicenter. [7] [8]
The initial report from a state geologist on Thursday was that the sound likely was caused by a sonic boom from military aircraft. ... Many people thought it was an earthquake, however ...
The U.S.G.S., which monitors earthquake activity, said no quake had struck and confirmed that a probable sonic boom had occurred near Hammonton, New Jersey.
The earthquake caused by the rock slide was followed almost immediately by a sonic boom. Soon afterward a granite dust mushroom cloud formed over Happy Isles. The immense pressure created at the base of the rock slide blew down giant pine trees. Afterwards the nearby campground tables and trees were covered with a thick coat of granite dust.
Supershear earthquake, an earthquake in which the propagation of the rupture along the fault surface occurs at speeds in excess of the seismic shear wave (S-wave) velocity, causing an effect analogous to a sonic boom. [18] Strike-slip earthquake, an earthquake where two pieces of crust slide horizontally past each other. [19]
The new report acknowledging the reach of sonic booms comes after officials at the base also disclosed plans to significantly ramp up the number of rocket launches, tripling blast-offs from about ...