The Letter Series and the Golden Years of IH. The F-series tractors lasted until 1939. In late 1939, the famous Letter series of Farmall tractors was introduced. The model name letters were A, B, BN, C (which replaced the B and BN in 1948), H, M, and MD(M diesel).
Japan has had a long history of earthquakes and seismic activity. It is an area of high seismicity because it is located near major tectonic plate boundaries and is situated on the Pacific Ring of Fire.n July 16, 2007, an earthquake measuring 6.6 M, the 2007 ChÅ«etsu offshore earthquake hit about 29 kilometres (18 mi) west of Niigata in the northwest Niigata region of Japan. ) was a powerful magnitude 6.6 earthquake The earthquake shook Niigata and neighbouring prefectures.
(CNN)Here's a look at the earthquake and tsunami that struck Japan in March of 2011. March 11, 2011 - At 2:46 p.m., a 9.0 magnitude earthquake takes place 231 miles northeast of Tokyo at a depth of 15.2 miles. The earthquake causes a tsunami with 30-foot waves that damage several nuclear reactors in the area. It is the fourth-largest earthquake on record (since 1900) and the largest to hit Japan.