Plane table In Surveying from Azil14...
Chain Survey
Chain SurveyChain survey is the simplest method of surveying. In this survey only measurements are taken in the field, and the rest work, such as plotting calculation etc. are done in the office. This is most suitable adapted to small plane areas with very few details. If carefully done, it gives quite accurate results. The necessary requirements...
Deadliest Earthquakes on Record
(50,000 deaths or more)
The following table lists the deadliest earthquakes on record according to date, location, number of deaths, and magnitude. On Jan. 23, 1556, an 8.0 magnitude earthquake struck Shansi, China killing 830,000 people.
Date Location Deaths Magnitude
Jan. 23, 1556 Shansi, China 830,000 ...
Recent Volcanic Activity
The following table shows the recent and ongoing volcanic history around the world by year of activity and volcano name.(Bold indicates activity in 2008, 2009, and 2010)
VolcanoYear of last
eruption
or activity
Adatara, Honshu, Japan1997
Akan, Hokkaido, Japan2006
Akutan, Alaska1996
Ambrym Island, Vanuatu2007
Amukta, Alaska1996
Anatahan, Mariana...
