Earthquakes In The Northeast United States?
USGS
Question: Why should people in the eastern US be concerned about earthquakes?
Answer: a) Severe earthquakes have occurred in the East:
In November of 1755, an earthquake with an estimated magnitude of 6.0 and a maximum intensity of VIII occurred 200 miles off the coast of Cape Ann, Massachusetts. Boston was heavily [...]
Most Violent Earthquake In A Century
On January 12, 2010, Haiti was struck by the most violent earthquake in a century. Michael Blanpied, associate coordinator for the USGS Earthquake Hazards Program, answers questions about the earthquake, its severe shaking, and the possibility of additional hazards, such as landslides and a tsunami.
Wednesday, January 20, 2010 at 06:03:44 AM at epicenter there was [...]
Earthquake Activity
USGS
Magnitude 7.0 – HAITI REGION
2010 January 12 21:53:09 UTC
15 km (10 miles) SW of PORT-AU-PRINCE, Haiti
USGS
Magnitude 6.5 – OFFSHORE NORTHERN CALIFORNIA
2010 January 10 00:27:39 UTC
37 km (23 miles) WNW (283°) from Ferndale, CA
USGS
Magnitude 4.1 – SAN FRANCISCO BAY AREA, CALIFORNIA
2010 January 07 18:09:35 UTC
10 km (6 miles) ENE (59°) from Milpitas, CA
USGS
Magnitude 5.8 – BAJA [...]
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Climate Change News
- U.S. Departments of Commerce and the Interior to Cooperate on Climate-Related ActivitiesU.S. Commerce Secretary Gary Locke and U.S. Secretary of the Interior Ken Salazar formalized an agreement between the two departments to coordinate and cooperate on climate related activities involving science, services, mitigation, adaptation, education and communication. […]
- NOAA: Past Decade Warmest on Record According to Scientists in 48 CountriesThe 2009 State of the Climate report released Wednesday draws on data for 10 key climate indicators that all point to the same finding: the scientific evidence that our world is warming is unmistakable. […]
Earth FAQ
- Where is the detailed report concerning the Bakken Formation?All currently available USGS material on the Bakken Assessment can be found on our website at http://energy.cr.usgs.gov/oilgas/noga/ (choose Bakken/Williston Basin on the map to see available documents), including a summary of the geology, geologic model, and methodology in poster format on our website at http://pubs.usgs.gov/of/2008/1353/. The more detail […]
- Did you feel an earthquake?To view a map or report a felt earthquake, select your region from this Community Earthquake Intensity Map. The website has a ('Did you feel it?') questionnaire for recording your earthquake experiences. An intensity map is made and updated based on your answers and those of others who fill out the questionnaire. Would you like to sign up for the E […]
- What are seismograms? How do you read them?Seismograms are the records (paper copy) produced by seismographs used to calculate the location and magnitude of an earthquake. They show how the ground moves with the passage of time. On a seismogram, the HORIZONTAL axis = time (measured in seconds) and the VERTICAL axis= ground displacement (usually measured in millimeters). When there is NO EQ reading th […]
U.S. Geological Survey
- Climate Change Implicated in Decline of Horseshoe CrabsLEETOWN, W. Va. — A distinct decline in horseshoe crab numbers has occurred that parallels climate change associated with the end of the last Ice Age, according to a study that used genomics to assess historical trends in population sizes. The new research also indicates that horseshoe crabs numbers may continue to decline in the future because of predi […]
- An island's rebirth: Life emerges after a catastrophic volcanic eruptionAnchorage, Alaska — A secluded island in the Aleutian chain is revealing secrets of how land and marine ecosystems react to and recover from a catastrophic volcanic eruption that appeared at first glance to destroy all life on the island. Yet little by little – a wingless beetle here, a tuft of grass there, Kasatochi, an island in the Alaska Maritime Nat […]
- Glaciers Retreating in AsiaMany of Asia’s glaciers are retreating as a result of climate change. This retreat impacts water supplies to millions of people, increases the likelihood of outburst floods that threaten life and property in nearby areas, and contributes to sea-level rise. The U.S. Geological Survey, in collaboration with 39 international scientists, published a report on […]