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LOS ANGELES (CBSLA) – The tremor felt in much of southern California wasn’t an earthquake – it was a sonic boom, according to the USGS.
The boom was felt around 9:20 a.m. Friday morning across a wide swath of Southern California. And while it wasn’t an earthquake, the USGS created an event page for it indicating that it was felt from Huntington Beach to Thousand Oaks along the coast, and as far from land as Lake Elinor.
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Hi SoCal – If you felt or heard something this morning ~9:20AM local time that sounded like an earthquake, it could be a sonic boom – see the event page for more details https://t.co/F1DRFhkt5N and read more on the sound barrier here https: //t.co/R5kN5LTZ0w.
– USGS Earthquakes (@USGS_Quakes) July 9, 2021
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Seismologist Dr. Lucy Jones said the seismograms clearly showed that the ground wasn’t moving – only the air, indicating that the source was a supersonic jet over the ocean.
The distribution of people who felt the sonic boom from https://t.co/DMc1xgkJo4strongly indicates that the source was a SST over the ocean. pic.twitter.com/tKTXiYWGlz
— Dr. Lucy Jones (@DrLucyJones) July 9, 2021
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It is unclear what aircraft caused the sonic boom.
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Sources 2/ https://news.google.com/__i/rss/rd/articles/CBMiaGh0dHBzOi8vbG9zYW5nZWxlcy5jYnNsb2NhbC5jb20vMjAyMS8wNy8wOS91c2dzLXNvbmljLWJvb20tZmVsdC1zb3V0aGVybi1jYWxpZm9ybmlhLW1pc3Rha2VuLWVhcnRocXVha2Uv0gFsaHR0cHM6Ly9sb3NhbmdlbGVzLmNic2xvY2FsLmNvbS8yMDIxLzA3LzA5L3VzZ3Mtc29uaWMtYm9vbS1mZWx0LXNvdXRoZXJuLWNhbGlmb3JuaWEtbWlzdGFrZW4tZWFydGhxdWFrZS8_YW1w?oc=5 The mention sources can contact us to remove/changing this article |
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