Earthquake Catalog/Station Log

Slides:

Advertisements

Similar presentations

Where did our waves come from?

Advertisements

Earth’s Dynamic Crust and Interior: small scale crustal changes  Movements of the crust is based on the concept of original horizontality. This concept.

Unit 7-2: Locating an Earthquake. Seismographs Seismograph:  The instrument used to record earthquake waves.  There are different kinds of seismographs.

Exploring Planet Earth Updated October 2011 The AS-1 Seismometer and AmaSeis Software – An Effective Educational.

Science for Planet Earth April 2010 A Decade of Earthquake Monitoring with an Educational Seismograph Larry.

AS-1 Seismograph Resources and Activities 1 L. Braile, Purdue University November, Last modified.

Shaking Up the Classroom – Activities with Earthquake Seismograms 1 L. Braile, Purdue University S. Braile, Happy Hollow School, West Lafayette, IN October,

Earthquake damage near Modena, northern Italy Magnitude and Intensity: M w 6.0 & 5.8; MMI VI-VII Date: May 20 th and 29 th 2012.

Studying Earthquakes. Seismology: the study of earthquakes and seismic waves.

L Braile, 1/26/2006 (revised, Sept., 2009) What is Moment Magnitude?

Weston Observatory in the 21 st Century... Seismology Research Science Education Public Outreach Earthquakes Monitoring Planet Earth Earth’s Interior Earth.

L Braile, 12/28/2006 (revised 9/14/08) Interpreting Seismograms

RAPID SOURCE PARAMETER DETERMINATION AND EARTHQUAKE SOURCE PROCESS IN INDONESIA REGION Iman Suardi Seismology Course Indonesia Final Presentation of Master.

Intro Objective 10/31/12 Locate the epicenter and focus of an earthquake Which is more powerful, an Earthquake, or a: A.hand grenade? B.stick of dynamite?

A Short Primer on Earthquake Magnitudes Alan Kafka Weston Observatory Department of Geology and Geophysics Boston College.

Section 2: Studying Earthquakes

Key Term: Epicenter. Locating the Epicenter Please turn to page 116 in your textbook. Epicenter The point on Earth’s surface directly above the focus.

Earthquake Measurement 10/23/14

How Are Earthquake Magnitudes Measured?. The Seismogram A typical seismogram.

How to find where they originate…

Do Now – In Notebooks 1.In what order do earthquake waves appear on a seismogram? 2.How many points are needed to determine the epicenter of an earthquake?

Exploring Planet Earth Larry Braile, Purdue University CSTA Convention, Oct. 2011, Pasadena, CA

Learning Teams Red - Favorite hobbies Green - Favorite place on earth Blue – Teaching situation (Grade level, courses, etc) Yellow – Favorite activity.

Seismographs in Schools- Vision Our Expectations Contract Instruments are on loan Stay in contact and engaged Newsletter, Teachable Moments, Animations,

Locating Epicenters and Earthquake Depths

Topic, Question, & Hypothesis IS DUE TOMORROW!!!!!

Seismographs Are instruments located at or near the surface of the Earth that record seismic waves.

L Braile, 10/7/2006, revised 8/16/2007, 9/18/09 Earthquake Catalog/Station Log

Finding the Epicenter …I hope you really like graphs!

Earthquakes HOW IS IT MEASURED?.  Instrument located at or near the earth’s surface to record seismic waves. (Tool) SEISMOGRAPH.

October 09, 2014 Agenda 1.Roll 2.PowerPoint Titled Earthquake Measurement 3.Video “Great Quakes”

Build your own seismograph Alan Kafka, Boston College Michael Hubenthal, IRIS.

Build your own seismograph Alan Kafka, Boston College Michael Hubenthal, IRIS.

Measuring Earthquakes (5-2 Notes). Magnitude = a measure of an earthquake’s strength Based on seismic waves.

Global earthquake explorer – a simple example for students.

Locating the Epicenter

 Energy travels as seismic waves which are vibrations caused by earthquakes.  All earthquakes start beneath the earth’s surface.

Epicenters Infer an earthquake’s epicenter from seismographic data.

Megaquake: Hour that Shook Japan (42:58min)

Ground Deformation: Faulting and Folding Earthquakes and Mountain- Building.

IRIS Seismographs in Schools Program

Ch.5, Sec.2 - Earthquake Measurement

Chapter 8 Section 2.

Earthquake Measurement

December 26, 2004 The Sumatra Earthquake & Tsunami

Daily Routine Sit in your appropriate seat quietly

Earthquakes I-880, Oakland, CA (October 1989).

4 min of arrival difference = 2,600 km

Earthquake Measurement

Scripps Institution of Oceanography

Using Distances to known Earthquake epicenters, create

SEISMIC WAVE BASICS.

Additional Tools and Demos for Earthquake Data L Braile, 9/15/2008

Making Waves: Seismic Waves Activities and Demonstrations

When does the P wave arrive? 08:08:00

Distance from Epicenter

So why are seismograms so important?

Chapter 7 review Define Stress and list three examples of stress that act on the Earth’s crust. Define 3 types of stress that act on the Earth’s crust.

Interpreting Seismograms

Chapter 12 - Section 2 Measuring Earthquakes

Do Now: According to the seismogram below, What time did the P wave arrive?

Chapter 12 - Section 2 Measuring Earthquakes

Locating an Earthquake's

Earthquakes & Seismic Waves

Earthquakes & Seismic Waves

Earthquake Measurement

AS-1 Seismograph Resources and

Shaking Up the Classroom – Activities with Earthquake Seismograms 1

Presentation transcript:

Earthquake Catalog/Station Log L Braile, 10/7/2006, revised 8/16/2007, 9/18/09 http://web.ics.purdue.edu/~braile http://web.ics.purdue.edu/~braile/edumod/as1lessons/InterpSeis/StationLog.ppt

IRIS Seismic Monitor for ~12:00 August 16, 2007 (UTC)

WLIN AS-1 Seismograph 24-hour screen display for August 15-16, 2007

USGS earthquake data (http://earthquake.usgs.gov)

WLIN AS-1 Seismograph 24-hour screen display for September 12-13, 2007, M8.4, M7.9, M7.0, Indonesia

Earthquake Catalog/Station Log Options… None Minimum “Complete” Advantages… Good science practice Record of station information Archive of event data

Earthquake Catalog/Station Log Information… Station Log… Record “state of health” information for your seismograph Note dates and times of calibrations, change of location, new software, time synchronization, noise characteristics, earthquakes recorded Earthquake Catalog… Record earthquake information for all (well recorded) seismograms – event origin time, location, magnitude, epicenter-to-station distance, etc.

Station log… (hand written notes) Date and Time (GMT) Comment Examples… Station log… (hand written notes) Date and Time (GMT) Comment 2006 9/1 16:25 AS-1 set up and operating, clock synch. 2006 9/4 ~10:14 EQ from Japan 2006 9/16 ~04:45 EQ M6.5 Gulf of CA 2006 9/18 20:52 Calibration pulse recorded 2006 9/20 12:25 Install new version of AmaSeis 2006 9/22 09:03 EQ M7.2 Sumatra (good surf. waves) 2006 9/28 20:33 Restart computer, clock synch. 2006 9/20 ~07:42 EQ Rat Islands, Aleutians . . . 2007 5/27 10:51 Turn off AS-1 and computer for summer

Earthquake Catalog (Excel File)… Revised to YYMMDD Format http://web.ics.purdue.edu/~braile/edumod/as1lessons/InterpSeis/EqList.xls

Suggestions… Record at least minimum information, hand written Focus on well-recorded events (don’t worry about every “wiggle” or weak, distant EQs – unless you just want to see where it came from) Synchronize clock every few days or use Internet time synch. Get an “Atomic Clock”, set to GMT time Create a seismogram archive for your station Send you best seismograms to SpiNet and download some seismograms for comparison