AVO Webicorders - Fourpeaked

AVO uses several different types of data to monitor volcanoes for signs of unrest or eruptive activity. The data displayed here have not been reviewed in any way, and are preliminary unless reviewed by an AVO geoscientist.
WEBICORDERS

AVAILABLE WEBICORDERS
'; // create links to the archived images $arch24 = $lnkpage . '_24.php'; $arch48 = $lnkpage . '_48.php'; $c1 = ($curpage == $lnkpage . ".php") ? 'class="positive"' : ''; $c24 = ($curpage == $arch24) ? 'class="positive"' : ''; $c48 = ($curpage == $arch48) ? 'class="positive"' : ''; // create links to the current and archive files $current = "Current"; $hour_24 = "24 hours"; $hour_48 = "48 hours"; $arch_div = '
' . $current . $hour_24 . $hour_48 . '
'; } else{ // create links to the archived images $arch24 = FOPK . '_24.php'; $arch48 = FOPK . '_48.php'; // create links to the current and archive files $current = "Current"; $hour_24 = "24 hours"; $hour_48 = "48 hours"; $arch_div = '
' . $current . $hour_24 . $hour_48 . '
'; } ?>
Fourpeaked
Station List:
FOPKFOSS
Gareloi
Great Sitkin
Iliamna
Kanaga
Kasatochi
Katmai
Korovin
Makushin
Martin
Okmok
Pavlof
Redoubt
Semisopochnoi
Shishaldin
Spurr
Tanaga
Ugashik-Peulik
Veniaminof
Westdahl

UTC CONVERSION
0000 UTC= 4:00 PM AKDT on the previous day as UTC
0600 UTC = 10:00 PM AKDT on the previous day as UTC
1200 UTC= 4:00 AM AKDT on the same day as UTC
1800 UTC = 10:00 AM AKDT on the same day as UTC

RED LINES
RED LINES indicate either a calibration pulse, or where the signal was clipped (too large to be recorded on the scale of the webicorder).
Fourpeaked 24 hour webicorder
Seismic station FOSS is 3.2 km (2.0 miles) from the summit of Fourpeaked Mountain. This and the other Fourpeaked stations are down due to station outages that were not able to be corrected in the latest field season.
 24 hour webicorder