A powerful 7.0 magnitude earthquake struck off the coast of Northern California, specifically in Humboldt County. The epicenter of the earthquake was located near Petrolia, Humboldt County, according to the U.S. Geological Survey (USGS). The earthquake occurred just before noon local time, sending shockwaves throughout the region.
Initially, a tsunami warning was issued for the coastal areas of California and Oregon, including cities like San Francisco. However, the National Tsunami Warning Center quickly canceled the warning, stating that there was no longer a tsunami threat for the region. Despite the cancellation of the warning, the USGS issued a yellow tsunami warning for 5.3 million Californians, predicting isolated instances of damage but overall minimal harm.
It is estimated that approximately 1.3 million people reside close enough to the epicenter to have felt the tremors of the earthquake. According to the USGS, the earthquake was primarily a strike-slip event, meaning that the tectonic plates shifted horizontally rather than vertically. This type of movement typically reduces the risk of triggering a tsunami.
Following the 7.0 magnitude earthquake, several aftershocks were reported in the region. The USGS recorded 35 aftershocks, with the largest one measuring a magnitude of 5.0. While some minor damages were reported, no significant injuries or fatalities were immediately reported in the aftermath of the earthquake.
The impact of the earthquake was felt across various communities in Northern California. The San Francisco Zoo evacuated tourists and relocated animals to higher ground as a precautionary measure. Public transportation was also affected, with delays on the BART system due to safety concerns. Governor Gavin Newsom declared a state of emergency in response to the earthquake, directing state agencies to assess damages and provide assistance to affected areas.
State Senator Mike McGuire provided updates on social media, reporting that thousands of households were left without electricity and several homes collapsed as a result of the earthquake. In Rio Dell, Mayor Debra Garnes noted road fractures and a gas leak at a local middle school, though no injuries were reported. The city manager of Ferndale reported minimal roof damage, while residents of Santa Cruz received tsunami warnings urging them to seek higher ground to ensure their safety.
The USGS warned of potential aftershocks in the coming days and weeks, with a 5% probability of a magnitude 6 or larger aftershock and a 34% likelihood of a magnitude 5 earthquake. They advised residents to be prepared for potential aftershocks and to follow safety protocols recommended by local authorities.
In conclusion, the 7.0 magnitude earthquake off the coast of Northern California has left communities in the region on edge, prompting responses from local and state officials to ensure the safety and well-being of residents. While the immediate threat of a tsunami has passed, the impacts of the earthquake may continue to be felt in the days and weeks to come as residents work to recover and rebuild from the seismic event.