logging in or signing up epicenter davgen Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 104 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 18, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Finding an Epicenter of an Earthquake: Finding an Epicenter of an EarthquakeWhat is an Epicenter?: What is an Epicenter? A point on the surface of the Earth directly above the FOCUS of the earthquake. The point within the Earth from which earthquake waves originate.Slide 3: Seismograph Print-outsUse the data from the recording stations:: Use the data from the recording stations: Station A: San Francisco, California P-Wave arrival 3:02:20 S-Wave arrival 3:06:30 What is the time difference between P and S wave arrivals? 4:10Use the data from the recording stations:: Use the data from the recording stations: Station B: Denver, Colorado P-Wave arrival 3:01:40 S-Wave arrival 3:05:00 What is the time difference between P and S wave arrivals? 3:20Use the data from the recording stations:: Use the data from the recording stations: Station C: Missoula, Montana P-Wave arrival 3:01:00 S-Wave arrival 3:03:00 What is the time difference between P and S wave arrivals? 2:00 Difference in arrival times:: Difference in arrival times: San Francisco: 4:10 Denver, Colorado: 3:20 Missoula, Montana: 2:00Slide 8: WE TAKE A PIECE OF PAPER, AND MARK OFF THE DIFFERENCE IN ARRIVAL TIME 2800Km 4:10Slide 9: WE MOVE THE PAPER UNTIL THE TWO TICK MARKS LINE UP WITH THE P AND S CURVES WHEN TICK MARKS LINE UP, GO STRAIGHT DOWN AND READ THE EPICENTER DISTANCE EPICENTER DISTANCE OF 2800 KMEPICENTER DISTANCES: EPICENTER DISTANCES San Francisco: 4:10 Denver, Colorado: 3:20 Missoula, Montana 2:00 2,800km 1,100km 2,000kmRecording Board Difference in arrival times:: Recording Board Difference in arrival times: San Francisco: 4:10 =2,800km 1,000 2,000 3,000 4,000 5,000 Open your compass to the EXACT distance on the scale.Slide 12: . . . Use your carefully set compass to draw a circle around each city. You've found the epicenter! 2,800km 2,000km 1,100km You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
epicenter davgen Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 104 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 18, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Finding an Epicenter of an Earthquake: Finding an Epicenter of an EarthquakeWhat is an Epicenter?: What is an Epicenter? A point on the surface of the Earth directly above the FOCUS of the earthquake. The point within the Earth from which earthquake waves originate.Slide 3: Seismograph Print-outsUse the data from the recording stations:: Use the data from the recording stations: Station A: San Francisco, California P-Wave arrival 3:02:20 S-Wave arrival 3:06:30 What is the time difference between P and S wave arrivals? 4:10Use the data from the recording stations:: Use the data from the recording stations: Station B: Denver, Colorado P-Wave arrival 3:01:40 S-Wave arrival 3:05:00 What is the time difference between P and S wave arrivals? 3:20Use the data from the recording stations:: Use the data from the recording stations: Station C: Missoula, Montana P-Wave arrival 3:01:00 S-Wave arrival 3:03:00 What is the time difference between P and S wave arrivals? 2:00 Difference in arrival times:: Difference in arrival times: San Francisco: 4:10 Denver, Colorado: 3:20 Missoula, Montana: 2:00Slide 8: WE TAKE A PIECE OF PAPER, AND MARK OFF THE DIFFERENCE IN ARRIVAL TIME 2800Km 4:10Slide 9: WE MOVE THE PAPER UNTIL THE TWO TICK MARKS LINE UP WITH THE P AND S CURVES WHEN TICK MARKS LINE UP, GO STRAIGHT DOWN AND READ THE EPICENTER DISTANCE EPICENTER DISTANCE OF 2800 KMEPICENTER DISTANCES: EPICENTER DISTANCES San Francisco: 4:10 Denver, Colorado: 3:20 Missoula, Montana 2:00 2,800km 1,100km 2,000kmRecording Board Difference in arrival times:: Recording Board Difference in arrival times: San Francisco: 4:10 =2,800km 1,000 2,000 3,000 4,000 5,000 Open your compass to the EXACT distance on the scale.Slide 12: . . . Use your carefully set compass to draw a circle around each city. You've found the epicenter! 2,800km 2,000km 1,100km