A magnitude 7.0 earthquake struck near Petrolia, California, on Thursday, prompting a tsunami warning that extended from southern Oregon to San Francisco. The tsunami alert was canceled shortly after noon, with residents advised to evacuate inland. The US Geological Survey estimated economic losses due to the quake might reach between $1 million and $100 million.
On Thursday at 10:44 a.m., a significant magnitude 7.0 earthquake occurred near Petrolia, California, leading to a tsunami warning that impacted areas from southern Oregon to San Francisco. The tremor, which originated on the San Andreas fault in a sparsely populated section of the northern California coast, was felt widely across Humboldt County. In response to the earthquake, the National Oceanic and Atmospheric Administration issued the tsunami warning, which was later lifted around noon. Residents in the affected coastal regions were urged to evacuate inland, following guidance from the National Tsunami Warning Center, which stated, “Move out of the water, off the beach, and away from harbors, marinas, breakwaters, bays and inlets.” The tsunami was expected to reach Fort Bragg by 11:10 a.m. and San Francisco at approximately 12:10 p.m. Additionally, the US Geological Survey provided preliminary estimates indicating a 32% chance of economic losses ranging from $1 to $100 million due to the quake.
Earthquakes are measured using the moment magnitude scale, which assesses their strength based on energy release. The scale is logarithmic; thus, even a slight numerical increase represents a substantial increase in magnitude. For instance, an earthquake rating of 5.0 is ten times more powerful than one rated at 4.0. Earthquakes above 6.0 can cause serious damage, while those above 8.0 can devastate entire communities. Understanding the potential for economic loss following such seismic events is vital for preparedness and response efforts, facilitating effective allocation of resources to impacted areas.
The recent magnitude 7.0 earthquake near Petrolia, California, highlighted the significant risks associated with seismic activity along the coast and underscored the importance of preparedness in the face of natural disasters. With initial tsunami warnings promptly canceled, the immediate threat to coastal communities diminished; however, the potential for economic losses remains a crucial consideration for local authorities and residents alike. Continued monitoring and communication will be essential in the aftermath of such seismic events to ensure community safety and recovery.
Original Source: www.registerguard.com
