Here are all the links you will need to monitor earthquakes on a Global basis:
United States earthquake sources:
Arkansas seismic network: http://www.geology.ar.gov/geohazards/ark_seismic_network.htm
http://www.ceri.memphis.edu/seismic/stations/nmsz.html
Midwest USA seismographs:
http://folkworm.ceri.memphis.edu/heli/heli_sp_mkta/
http://folkworm.ceri.memphis.edu/heli_bb_slu/
http://folkworm.ceri.memphis.edu/heli/heli_sp_nmad/
http://folkworm.ceri.memphis.edu/heli/heli_sp_athn/
http://folkworm.ceri.memphis.edu/heli/heli_sp_lnxt/
http://folkworm.ceri.memphis.edu/heli/heli_sp_mttn/
http://folkworm.ceri.memphis.edu/heli/heli_sp_ceri/
http://folkworm.ceri.memphis.edu/heli/heli_uky/
http://earthquake.usgs.gov/monitoring/netquakes/
http://earthquake.usgs.gov/monitoring/netquakes/map/
New Madrid seismic zone (NMSZ information): http://www.showme.net/~fkeller/quake/maps.htm
http://www.pnsn.org/WEBICORDER/BETTER/pnsn_staweb/index.html
http://www.pnsn.org/OPS/stations.html
http://earthquake.usgs.gov/
http://aslwww.cr.usgs.gov/Seismic_Data/heli2.shtml
http://aslwww.cr.usgs.gov/Seismic_Data/telemetry_data/
California seismographs:
http://pasadena.wr.usgs.gov/webicorder/
http://earthquake.usgs.gov/monitoring/helicorders/nca/
http://earthquake.usgs.gov/monitoring/anss/
http://aslwww.cr.usgs.gov/Seismic_Data/telemetry_data/map_sta_eq.shtml
http://www.volcano.si.edu/reports/usgs/
http://hawaii.wr.usgs.gov/
USGS Hawaii earthquakes : http://tux.wr.usgs.gov/
Alaska Volcano observatory: http://www.avo.alaska.edu/
Mount Baker (pacific northwest): http://mbvrc.wwu.edu/index.shtml
West Coast / Alaska Tsunami warning center: http://wcatwc.arh.noaa.gov/events/eventmap.php
Pacific Tsunami Warning center: http://ptwc.weather.gov/
National Data Buoy Center (monitor buoys for wave activity): http://www.ndbc.noaa.gov/
Pacific Basin Information node: http://www.nbii.gov/portal/server.pt?open=512&objID=240&mode=2&in...
East coast (columbia college) seismographs: http://www.ldeo.columbia.edu/cgi-bin/LCSN/WebSeis/24hr_heli.pl?id=
Yellowstone supervolcano seismographs: http://www.isthisthingon.org/Yellowstone/daythumbs.php
Montana .edu / yellowstone seismographs: http://mbmgquake.mtech.edu/earthworm/wavef_disp/current/welcome.html
University of Utah yellowstone seismographs: http://www.quake.utah.edu/helicorder/
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Rest of the world (always updating with more):
Mexico seismographs: http://www.ssn.unam.mx/