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July 28, 2014


I like the USGS site. A few years ago I felt an earthquake and then typed into Google did I just feel an earthquake and that is how I found this site. I was the 3rd person to report it and there ended up being a few hundred reports.

Ingineer--People are really good about reporting to the USGS site. I have reported several earthquakes in the past few years, having learned of the site through my disaster response work. Of course, USGS was the eventual employer of several of Hunky Husband's and my school buddies (what does one expect for graduates of a "School of Mines & Metallurgy"?) There was a USGS office in our little college town that was a resource for us spelunkers. I even talked Hunky Husband into going on one cave crawl while we were dating. It must have been after we were engaged. I'm not sure that he would ever have proposed, afterward! *chuckling*

I don't report on the earthquakes I feel on the Big Island of Hawaii,since so many others do. Usually the time,location and magnitude are posted within a few minutes of an event.

I am awed when I feel an earthquake up here in NH. Usually it takes a minute for it to register it as an earthquake. Then I immediately report it. Then, I have to go hunting around until I get confirmation that I'm not crazy (well, not crazy for thinking it was an earthquake anyway). Several have happened while I was at work and no one else felt them. Of course, maybe that means I sit too much in my chair since most are so slight that if you are walking, you won't notice.

USGS has posted histories of earthquakes in various locations including Hawaii, Kansas, and New Hampshire. Those articles make interesting reading. The first recorded earthquake in Hawaii was in February 1834 - recorded by a woman who lived in Hilo.

The first earthquake was recorded in Kansas in April 1867. According to the article, "The tremor was felt over an area of 300,000 square miles in Kansas, Missouri, Nebraska, Arkansas, Illinois, Indiana, Kentucky, and possibly Ohio."

The article concerning earthquakes in New Hampshire begins with the following two paragraphs.

"In addition to tremors originating within the State, New Hampshire has also been affected by some of the stronger earthquakes centered in the St Lawrence Valley seismic zone and in the northeastern Massachusetts seismic zone.

"On February 5, 1663, a major earthquake centered in the St. Lawrence River region was felt over all the settled areas of eastern Canada and northeastern United States. Because of the sparse population at this early time in Colonial history, accounts of the earthquake are far from definite. However, the shock was felt sharply in New England. At Massachusetts Bay, houses were shaken, pewter fell from shelves, and chimneys were broken or thrown down. The affected area undoubtedly include New Hampshire."

Regardless of the article concerning Kansas (which concerns, mostly, eastern Kansas - I'm speculating due to the New Madrid seismic zone) I'm sure that I had not felt an earthquake in Kansas until a couple of years ago. South central Kansas geology is quite different from the geology in the eastern part of the state. All of the earthquakes that I've felt in Kansas have had epicenters in Oklahoma. I lived in Oklahoma 1943-1946, and we had tornadoes; but, I don't recall having had any earthquakes during that time.

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