|Photo by Linda Stromquist, NPS.|
“It’s been really interesting to watch because it’s still steaming and still burning but if it is indeed oil shale as USGS suspects, oil shale and sulfur, it could be as deep as a thousand feet which means it could have been burning for some time from a lightning strike years ago and it’s been burning underground and finally burned enough to cause a slump or a crater like depression in the earth so until we actually get boots on the ground and we don’t know when that’s going to happen, we’re not going to know,” Sanders said. Sanders says it’s difficult to tell from the hazy aerial pictures, but the craters appear to be as deep as 150 to 200 feet and she says there has been significant slumping since it was first observed. She says the Hard Luck Creek fault is in the area and is an active fault. USGS geologist Marti Miller says it’s more likely to be burning oil shale not a burning coal seam. “But we’re fairly confident that it’s not a hot spring or some other type of volcanic related incident,” Miller said. Which will be disappointing news to Pat Sanders in Eagle. “Of course everyone in Eagle is hoping it’s going to be a thermal event and we’ll end up with a hot springs but maybe that’s just because it was 45 below last week,” Sanders said. NPS geologist Linda Stromquist says, although they would like to examine the site sooner, at this point in the year it is probably prudent to wait until better weather and daylight conditions improve, toward spring. - Alaska Public.