And then there are the M-Disk: http://www.extremetech.com/computing/92286-m-disc-is-a-dvd-made-out-of-stone-that-lasts-1000-years. USD DOD test: http://www.mdisc.com/uploads/M-DISC_1sheet_ChinaLake_vF.pdf. Down side, requires writer that is M-Disk capabale, and disk are expensive (ie about 3 bucks per disk.
The Shaanxi earthquake's epicenter was in the Wei River Valley in Shaanxi Province, near the cities of Huaxian, Weinan and Huayin.
The Tangshan earthquake, also known as the Great Tangshan earthquake, was a natural disaster that occurred on July 27, 1976.It is believed to be the largest earthquake of the 20th century by death toll.The epicenter of the earthquake was near Tangshan in Hebei, People's Republic of China, an industrial city with approximately one million inhabitants.The number of deaths initially reported by the Chinese government was 655,000, but this number has since been stated to be around 240,000 to 255,000.he Tangshan earthquake, also known as the Great Tangshan earthquake, was a natural disaster that occurred on July 27, 1976.