Science Topics term usage 2007-02-23

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

2399	earthquakes
1377	earthquake occurrences
145	volcanoes
93	seismology
87	geographic information systems (GIS)
36	acid deposition
31	earthquake probabilities
28	human impacts
27	earth structure
26	tectonic processes
25	rocks and deposits
23	climate change
23	contamination and pollution
21	floods
21	tsunamis
19	real-time monitoring and reporting
19	health and disease
18	hurricanes
17	volcanic activity
16	endangered species
15	ground water
15	fire damage
15	topics
14	landslides
14	surface water (non-marine)
13	water quality
13	maps and atlases
13	magnetic field (earth)
13	animals
12	cartography
12	geologic history
12	hazards
12	geologic structure
11	plants (organisms)
11	land subsidence
11	land surface characteristics
11	energy resources
11	gravitational field (earth)
11	impact cratering
11	erosion

Science Topics term usage Friday, 2007-02-23