1 Do Now: Turn to pg.11 of ESRT to help you answer the question below (5-mins) 2 b) Go over to the y-axis and determine the travel time. 3 L.O. SWBAT calculate the origin time of an earthquake wave and arrival time of an earthquake using the ESRT 4 QFT: Turn & Talk: Write down 2-3 questions or statements about the seismic waves below (2-mins + 2 mins share) L.O. SWBAT calculate the origin time of an earthquake wave and arrival time of an earthquake using the ESRT 5 L.O. SWBAT calculate the origin time of an earthquake wave and arrival time of an earthquake using the ESRT 6 Seismic Waves Waves that travel through the earth 7 Example 5: How far can an S-wave travel in 9 minutes? 8 Find the travel time and Epicenter distance on your worksheet Work with a partner (10 mins) 9 Mid – Assessment Share out 10 b) Go over to the y-axis and determine the travel time. 11 b) Go over to the y-axis and determine the travel time. 12 b) Go over to the y-axis and determine the travel time. 13 Example 6: How far can an P-wave travel in 9 minutes? 14 Example 7: How far can an S-wave travel in 6 minutes 40 seconds? 15 Example 8: How far can a P-wave travel in 6 minutes 40 seconds? 16 Diamond Questions (Challenge. ) 1 17 Final– Assessment Share out 18 3) If you are asked for the arrival time of an earthquake wave and given an epicenter distance and origin time: a) Determine travel time of the wave (see #1) b) Add travel time to the origin time given. Example 9: If an earthquake occurs at 08:50:40, what time did the P-wave arrive at a seismic station 2,600 km away? 08:50:40 +00:05:00 Answer: 08:55:40 L.O. SWBAT calculate the origin time of an earthquake wave and arrival time of an earthquake using the ESRT 19 3) If you are asked for the arrival time of an earthquake wave and given an epicenter distance and origin time: a) Determine travel time of the wave (see #1) b) Add travel time to the origin time given. Example 10: If an earthquake occurs at 02:11:20, what time did the S-wave arrive at a seismic station 9,000 km away? 02:11:20 +00:22:20 Answer: 02:33:40 L.O. SWBAT calculate the origin time of an earthquake wave and arrival time of an earthquake using the ESRT 20 4) If you are asked for the origin time (the time an earthquake occurred): 21 4) If you are asked for the origin time (the time an earthquake occurred): 22 Homework Castle learning Practice Questions! |