to the northeast. this weekend has been the furthest to the east we have seen which tells you this is traveling underground until it gives. as this lava is released, it's draining the main chamber. that's important to know here. take a look at this imanl ri that we got from the usgs. it's a camera that looks down. as the lava drops, which was at the top, it releases pressure so there's like land slides. there's debris inside. here is the lava on april 23rd. this is important because we have a steam driven, massive, violent eruption if this lava drops down to the water table which is at 1500 feet. right now the lava is down almost to 1200. a couple of feet a day. another 3-d imagery, they can tell us from using their high-tech cameras what this chamber is shaped like. it's getting down and tapering