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?

radio and phones	courier	mirrors
helicopter	satellite

Who or what initially detects the earthquake ground motions?

a seismologist	a computer	a technician
a really smart chimp	graduate student

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

Under what conditions are humans notified to interact 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)?

1 gallon	2 gallons	3 gallons
4 gallons	5 gallons

What should home owners do to their hot water heaters?

empty them	fill them	secure 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

How many fatalities occurred as a result of the 1994 Northridge earthquake?

34	57
112	153

---

Questions regarding California earthquake history:

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)?

0.45	1.2	8.9
15	25	32

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