NO EARTHQUAKE REPORTED BY USGS FOR LAKE COUNTY
An unconfirmed and unidentified seismic event was reported to have occurred on Friday, October 29, 2021 at 4:24 p.m. CDT by an unknown seismic station with over 250 citizen observations, according to an unofficial earthquake observation website volcanicdiscovery.com. If the plotted epicenter is accurate, the epicenter was located at a depth of 12 miles under Hastings Lake or near Hastings Lake in the Hastings Lake Forest Preserve about 6.5 miles northwest of Six Flags Great America in Gurnee in Lake County.
The United States Geological Survey (USGS) did not report any incident in Lake County on October 29, 2021.
Date & time: Oct 29, 2021 21:24:45 UTC
Local time at epicenter: Friday, Oct 29, 2021 4:24 pm (GMT -5) NOTE: Inconsistent times have been reported for the incident
Depth: 20.0 km
Epicenter latitude / longitude: 42.42549°N / 88.03635°W↗ (Lake County, Illinois, United States) *NOTE: Epicenter lat/long values have changed slightly and may change again
The Northwestern University Seismograph Network detector at Ryerson Woods, Lake County Forest Preserve, IL, USA L44A_NW, Vertical Component did not detect any signal connected to the incident reported for October 29, 2021 on volcanodiscovery.com.
L44A Monitoring Station on October 29, 2021
Here is the L44A Seismograph at Ryerson Woods for October 11, 2021 — the day that an earthquake occurred in Alaska. The earthquake with a preliminary magnitude of 6.5 struck early Monday, October 11, 2021 off the coast of Alaska. … The epicenter was about 71 miles east of the village of Chignik, the U.S. Geological Survey reported. The depth was reported at 29 miles deep. Later the earthquake was declared a magnitude 6.9 earthquake.
Volcanodiscovery.com published on Friday October 29, 2021 and Saturday, October 30, 2021 that reports were received at volcanodiscovery.com submitted by citizens for a seismic-like incident that included a variety of observations, including a boom, weak shaking, very weak shaking, a single lateral shake, a single vertical bump / very short, rattling, vibrating, house rattling, a thunder type burst, a sonic boom sound.
Locations reporting an unconfirmed and unidentified seismic-like event on Friday, October 29, 2021 included but were not limited to …
Grandwood Park, IL ( just west of Gurnee Mills in Warren Township)
Lake Villa, IL
Round Lake Beach, IL
North Chicago, IL
The Northwestern University Seismograph Network detector at Ryerson Woods, Lake County Forest Preserve is located about 17 miles southeast of Hastings Lake.
Hastings Lake with location near latitude / longitude: 42.42549°N / 88.03635°W (42.42549, -88.03635) …
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42.44574°N / 87.98583°W