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Originally posted by questioningall
Have you seen this big of a spike at OF before?
Originally posted by kennethmd
It is a possibility that there is going to be a eruption. That if the quakes are happening more close together. And more frequent to each other.
With my "What if" in hand, I set out to see if there was evidence for the possibility. I found it. I found two caldera chains which run across Canada. But I was dismissed by the experts.
All,
A few more relevant points.
LKWY is not in a borehole. It is at the surface. It is part of the "backbone system" of USGS seismic stations that cover the entire country. It runs off a satellite dish, in contrast with most of the other seismic stations at YNP.
There is a nearby borehole with a strainmeter. That is different.
The borehole instrumentation also goes down due to telemetry issues, power problems, etc. A nearby GPS receiver is also called LKWY. It is now maintained by UNAVCO, a non-profit company that is a contractor to NSF.
LKWY was fixed by a park staff member who went out and cleared snow and ice out of the satellite dish.
A UNAVCO engineer was just out fixing problems with the strainmeters. Getting someone from Boulder out to the equipment requires a lot of time and money. Weather has been horrible. All travel is by snow machine.
Equipment goes down and comes up all the time. The equipment is run by different groups such as UU, USGS Denver, USGS Menlo Park, NSF through the UNAVCO consortium, the USGS Water Resources group in Montana, and others. If we tried to provide a running commentary on each piece of instrument that is up or down, it would be a major task
for us and those enthusiastic citizens pasted to their web browsers
would probably not be any happier.
Basically, the UU has had no problem locating earthquakes throughout the past few weeks, even when instruments go up and down. As you've noticed, big earthquakes (> M2.5) are located instantly by an automatic routine. Small ones take a few days to make it into the catalog, especially when staffing is low during the holidays.
My two cents.
Jake Lowenstern, Scientist-in-Charge, YVO