Digital camcorders and software programs can generate THM files, which are, essentially, thumbnail images of other media files. Typically, a THM file contains the first frame of the video file whose thumbnail it represents. The names of THM files are similar to the names of the underlying media files. THM files are based on the JPEG format and can be opened by the same programs that open JPEG files.
The most recent major earthquake occured near Haiti. Earthquakes occur most often in seismically active regions, most often the South Pacific around the so called Pacific Rinâ¦g of Fire, and any region where continental plates interact.
Causes. An earthquake is the shaking and vibration of the Earth's crust due to movement of the Earth's plates (plate tectonics). Earthquakes can happen along any type of plate boundary.Earthquakes occur when tension is released from inside the crust. Plates do not always move smoothly alongside each other and sometimes get stuck. When this happens pressure builds up. When this pressure is eventually released, an earthquake tends to occur.arthquakes can happen along any type of plate boundary. Earthquakes occur when tension is released from inside the crust. Plates do not always move smoothly alongside each other and sometimes get stuck. When this happens pressure builds up. When this pressure is eventually released, an earthquake tends to occur.