SLU EAS 193 Homework Submittal Form Enter Your Name: Enter Your Email Address: Answer all of the following questions and the click the "submit" button at the bottom of the page (after a few seconds you should receive a reply page confirming your submission). Questions regarding current earthquake activity Recent World-Wide Earthquake Number One: Date and Time: Latitude (°): Depth (km): Longitude (°): Recent World-Wide Earthquake Number Two: Date and Time: Latitude (°): Depth (km): Longitude (°): Recent North America Earthquake Number One: Date and Time: Latitude (°): Depth (km): Longitude (°): Recent North America Earthquake Number Two: Date and Time: Latitude (°): Depth (km): Longitude (°): Questions regarding real-time earthquake monitoring in California and Nevada: How are the seismic signals transmitted from the 600 seismic stations in the region? helicopter courier mirrors radio and phones satellite Who or what initially detects the earthquake ground motions? a graduate student a technician a computer a really smart chimp a seismologist About how long does it take to have a preliminary estimate of an earthquake location? Is it less than or equal to: one second 10 seconds one minute 10 minutes 1 hour What circumstances typically cause human interaction with the automated system? For each earthquake Every hour For magnitudes > 3.5 For magnitudes > 5.0 For magnitudes > 6.0 Questions regarding earthquake preparedness: How much water does the OES recommend that you store (per person per day)? 5 gallons 4 gallons 3 gallons 2 gallons 1 gallon What should home owners do to their hot water heaters? secure them empty them fill them replace them If you are in a high-rise building during an earthquake, what should you do if there is no table or desk to duck under? Go to the stairs Move near an interior wall Lie flat in the center of the room Sit tight and ride it out Questions regarding California earthquake history: How many fatalities occurred as a result of the 1994 Northridge earthquake? 34 57 112 153 How many injuries occurred as a result of the 1994 Northridge earthquake? 100 700 11,000 32,000 What was the economic cost of the Northridge quake (in billions of US dollars)? 0.5 1.2 9 15 32 more than 40 What was the most expensive earthquake in California history? San Francisco, 1906 Loma Prieta, 1989 Kern County, 1952 Northridge, 1994 What was the most deadly earthquake in California history? San Francisco, 1906 Loma Prieta, 1989 Kern County, 1952 Northridge, 1994 What was the largest (by magnitude) earthquake in California this century? San Francisco, 1906 Loma Prieta, 1989 Kern County, 1952 Northridge, 1994 If you like, enter some comments on the course here (this is not anonymous): Click this button to submit your answers. Click this button to clear your answers. Back to EAS 193 Home | Ammon's Home | Department of Geosciences Prepared by: Charles J. Ammon