I'm not sure if they publish current activity but you might check the
Weston observatory at Boston College
http://www.bc.edu/bc_org/avp/cas/wesobs/default.html

Bruce

At 05:37 PM 07/10/1999 -0400, you wrote:
>To PSN group:
> The ldgo.columbia.edu at:
>>http://quake.wr.usgs.gov/cgi-bin/finger?quake@................. > had been
>listing quakes and other seismic activity on the East Coast of the USA. It
>had been covering an area from Maine to Virginia and parts of Ontario
>Canada. It is no longer doing so. Does any one know of another site that
>has the same information?
>
> On the subject of seismic activity, it would be informative if there was
>some discussion on what we are seeing when the sensor detects an event.
>Since I am novice in the field of seismology, I have a few of questions.
>
>1: In some Earthquakes, why is it that the "P" and "S" waves do not arrive
>at the time where I would expect them to? 
>
>2: In some quakes, the Event starts with a large Spike and then gradually
>decreases. Why?
>
>3: Why do some quakes gradually swell. They look like a rubber garden hose
>that is on the verge of blowing up. The 6.3 in the Solomon Islands on
>7/9/99 made that kind of an unusual foot print.
>
>Nick  
>
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