Sharon Hill
Complicated biological machine
- Joined
- Dec 16, 2014
- Messages
- 1,860
- Location
- Pennsylvania, USA
It all started when a wave swept across Oklahoma on June 24, just before 11:11 a.m. local time. It buzzed one seismometer after another, seeming to ping-pong hundreds of miles across the state. This wave didn’t just breeze by—it pulsed like a geologic heartbeat for about 10 minutes.
“Well, that’s odd,” geophysicist Jake Walter at the Oklahoma Geological Survey remembers thinking. He had spotted the regular pulse as it scrolled across a big flat screen TV in the OGS seismic lab. At first he thought it might be a glitch in the monitoring devices, but when that happens, the signal is usually limited to a single instrument. That morning’s buzz, as he later found out, rattled 52 stations across the state.
Andrew Thiel, an OGS analyst tasked with investigating the event, traced similar signals back to at least March. Through the summer, the waves swept across the state with increasing frequency, intensity, and spread, sometimes sticking around for more than 20 minutes. But they always happened in the morning, and never on a Sunday.
https://www.nationalgeographic.com/...ves-rattled-entire-state-scientists-know-why/
Of note, there are regularly "mine explosions" that register 2.0 Mw on the USGS networks for earthquakes. It doesn't make a lot of sense but I wonder if there isn't some particular situation of earth + sky that makes them register this way on occasion. MANY years ago, I participated in a study of a neighborhood who complained vehement about blasts from a quarry but the intensity they reported did not correspond to the intensity of the shots, any weather condition, or bedrock characteristic we could pinpoint.
Atmospheric acoustics is ripe for more investigation. It almost certainly might shed light on the reports of "booms" heard worldwide.
“Well, that’s odd,” geophysicist Jake Walter at the Oklahoma Geological Survey remembers thinking. He had spotted the regular pulse as it scrolled across a big flat screen TV in the OGS seismic lab. At first he thought it might be a glitch in the monitoring devices, but when that happens, the signal is usually limited to a single instrument. That morning’s buzz, as he later found out, rattled 52 stations across the state.
Andrew Thiel, an OGS analyst tasked with investigating the event, traced similar signals back to at least March. Through the summer, the waves swept across the state with increasing frequency, intensity, and spread, sometimes sticking around for more than 20 minutes. But they always happened in the morning, and never on a Sunday.
https://www.nationalgeographic.com/...ves-rattled-entire-state-scientists-know-why/
Of note, there are regularly "mine explosions" that register 2.0 Mw on the USGS networks for earthquakes. It doesn't make a lot of sense but I wonder if there isn't some particular situation of earth + sky that makes them register this way on occasion. MANY years ago, I participated in a study of a neighborhood who complained vehement about blasts from a quarry but the intensity they reported did not correspond to the intensity of the shots, any weather condition, or bedrock characteristic we could pinpoint.
Atmospheric acoustics is ripe for more investigation. It almost certainly might shed light on the reports of "booms" heard worldwide.