EESA06H3 Lecture Notes - Lecture 3: Prunus Spinosa, Japa, Epicenter
Document Summary
I(cid:374)t(cid:396)odu(cid:272)tio(cid:374) to pla(cid:374)et ea(cid:396)th le(cid:272)tu(cid:396)e 3 p(cid:396)o(cid:271)i(cid:374)g the ea(cid:396)th"s deep interior. Relevant chapters are three and four for this lecture. Don"t talk about it in the lecture not going to be on exam. The epicenter is the place above the surface and where damage is localized, damage at surface. Earthquakes produce energy but usually in the form of waves. Pns waves: primary and secondary waves, receive primary wave first higher velocity. Seismograph is a machine to measure displacements in earths crust. Cha(cid:396)les l(cid:455)ell fa(cid:373)ous te(cid:454)t(cid:271)ook (cid:862)p(cid:396)i(cid:374)(cid:272)iples of geolog(cid:455)(cid:863) picked up by charles darwin lyell was influential. Deep drilling only goes so far: about 13km deep huge technical problems with drilling depth: it gets hotter, deepest mine in the world in south africa, we drill deeper and deeper the steele drill gets softer. The record is only 13km not telling u much. Japan part of pacific rim meaning lots of earthquakes and volcanoes. All plates meeting under japan specifically under tokyo.
