5.3 Earthquake hits Portugal; strongest earthquake since 2009

Portugal-earthquake

Important Takeaways:

  • An earthquake with an estimated magnitude of 5.4 on the Richter scale struck in the early hours of Monday morning, according to the US Geophysical Institute (USGS) and the Euro-Mediterranean Seismological Centre.
  • The shocks were most intense in the Sines, Lisbon and Setúbal areas, with reports on social media of the earthquake being felt as far as Porto, and even Spain and Morocco.
  • The Portuguese Sea and Atmosphere Institute (IPMA) has since revised the earthquake’s magnitude to 5.3 on the Richter scale.
  • The earthquake was recorded at 5:11 am local time (6:11 am CET), with its epicenter 58 kilometers west of Sines, on the high seas, and at a depth of 21 kilometers, according to the IPMA.
  • In a statement issued Monday morning, the Portuguese government said it was “in close coordination with all the relevant services” following the earthquake.
  • It reassured that there was no record of personal or material damage and appealed to the population to remain calm and follow the recommendations of the National Emergency and Civil Protection Authority.
  • The quake wasn’t big enough to create a tsunami on the US East Coast or Europe.
  • The earthquake was also felt in parts of Morocco, including the Casablanca area.

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Divine Intervention? Earthquake and aftershocks in Southern Syria and Lebanon giving pause to attacks from Hezbollah

Israel-Hamas-War

Important Takeaways:

  • Some see God’s divine intervention in an earthquake that struck southern Syria and Lebanon on the very day as an attack by Iran and Hezbollah against Israel was anticipated.
  • Israel has been bracing for an attack by Iran and its proxy Hezbollah ever since the Hamas leader Ismail Haniyeh was assassinated in Tehran on July 31.
  • Some have felt the delay in a response may have been because the Islamic State wanted to wait for the Tisha B’Av, or the 9th of Av on the Jewish lunar calendar, which began on Monday evening and continued until nightfall on Tuesday.
  • However, the Associated Press reported that a 5.5 magnitude earthquake struck the city of Hama at 11:56 p.m. local time Monday night. The official Syria state news outlet said it was a 4.8 magnitude quake. Aftershocks continued into Tuesday morning.
  • “In Damascus and Beirut — the capital of neighboring Lebanon, where the earthquake was also felt — residents descended to the streets fearing a stronger quake that would collapse buildings,” according to the AP.

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7.0 Earthquake sets off a volcano in Russia

Russia Earthquake Volcano

Important Takeaways:

  • One of Russia’s most active volcanoes spewed plumes of ash 3 miles into the sky
  • The Shiveluch volcano began sputtering shortly after a powerful 7.0 magnitude earthquake struck off Kamchatka’s east coast early Sunday, according to volcanologists from the Russian Academy of Sciences. They warned that another, even more potent earthquake may be on the way.
  • The academy’s Institute of Volcanology and Seismology released a video showing the ash cloud over Shiveluch. It stretched over 490 kilometers (304 miles) east and southeast of the volcano.

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Southern California on edge after another earthquake 4.4

©-Kirby-Lee-USA-TODAY-Sports-LA-Skyline

Important Takeaways:

  • Los Angeles earthquake follows cluster of California temblors: ‘Almost don’t believe it’
  • A magnitude 4.4 earthquake rumbled underneath Los Angeles on Monday, less than a week after a bigger one jolted much of Southern California.
  • The U.S. Geological Survey placed the epicenter of Monday’s quake near the Highland Park neighborhood in the city’s northeast and three miles from Pasadena, California, site of the New Year’s Day Rose Parade. The tremor, which struck about 12:20 p.m. PT, was felt as far north as Bakersfield, California, and further south in San Diego, both more than 100 miles from Los Angeles.
  • “No significant infra/structure damage or injuries have been noted within the city”, the Los Angeles Fire Department said after conducting a survey.

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7.1 magnitude earthquake hits off southern Japan triggering tsunami advisory

Important Takeaways:

  • The Japan Meteorological Agency said the quake registered magnitude 7.1 and was centered in waters off the eastern coast of Japan’s southern main island of Kyushu at a depth of about 30 kilometers (18.6 miles).
  • Seismologists were holding an emergency meeting to analyze whether the quake had affected the nearby Nankai Trough, the source of past devastating earthquakes.
  • Seismology Department official Shigeki Aoki warned that strong aftershocks could occur for about a week.
  • Japan sits on the Pacific “Ring of Fire,” a line of seismic faults encircling the Pacific Ocean, and is one of the world’s most earthquake-prone countries.
  • An earthquake on Jan. 1 in Japan’s north-central region of Noto left more than 240 people dead.

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Southern California shaken by 5.2 earthquake and over 50 aftershocks

Seismograph-at-Griffith-Observatory-@jaredhead-X

Important Takeaways:

  • A magnitude 5.2 earthquake near Bakersfield on Tuesday night rattled much of Southern California, including parts of the Los Angeles metro, and was followed by dozens of aftershocks.
  • According to the U.S. Geological Survey (USGS), the initial 5.2-magnitude quake struck at 9:09 p.m. PT, some 14 miles southwest of Lamont, California, in Kern County, at a depth of about 7.3 miles. Some residents of the Los Angeles area reported the shaking nearly 90 miles away.
  • The USGS recorded more than 50 aftershocks in the hours following Tuesday night’s earthquake, ranging in magnitude from 2.5 to 4.5.
  • Los Angeles Mayor Karen Bass announced late Tuesday night that no injuries or damage were reported on the city level, according to FOX 11.

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4.9 shakes Southern California followed by several aftershocks

A-seismograph-at-Griffith-Observatory

Important Takeaways:

  • A magnitude 4.9 earthquake followed by several strong aftershocks shook Southern California early Monday afternoon.
  • According to the U.S. Geological Survey, the quake struck at 1 p.m., with the epicenter roughly 13 miles northeast of Barstow in San Bernardino County. The impact was felt across a wide swath of Southern California, including metropolitan Los Angeles and northern San Diego County.
  • The USGS initially measured the quake as a 5.1 magnitude but quickly downgraded it to 4.9. It was followed by several significant aftershocks measuring 3.5 and 2.7.
  • There were no immediate reports of damage or injuries.
  • Thousands of earthquakes are recorded in California each year, but the vast majority are extremely minor. According to the USGS, only several hundred are greater than magnitude 3.0, and only about 15 to 20 are greater than magnitude 4.0.

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Latest Texas earthquake registered 5.1-magnitude, reported in same area for second time this week

Texas-Earthquake-5.1-WFAA-ABC-8

Important Takeaways:

  • The earthquake, which happened about 10 miles northeast of Hermleigh in West Texas, initially registered as a 4.8-magnitude before being upgraded to 5.1.
  • Twelve minutes after the first earthquake, a second earthquake registered as a 3.8-magnitude, according to the USGS data.
  • A third earthquake happened about an hour later and registered as a 2.7-magnitude.
  • The 5.1-magnitude earthquake was similar in size to the 4.9 that was felt across West Texas and into parts of North Texas on Monday night. Both earthquakes were on the higher end of what Texas experiences with earthquakes, though some in recent years have exceeded a 5.0-magnitude.

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Brief rise in earthquake activity near Kilauea

Kilauea-volcano-USGS

Important Takeaways:

  • Earthquake and ground deformation rates in Kilauea’s upper East Rift Zone decreased significantly following a “burst of intense activity” at approximately 3:30 a.m. HST on July 23, 2024. Accordingly, the USGS Hawaiian Volcano Observatory has lowered the Volcano Alert Level for ground-based hazards from WATCH to ADVISORY and the Aviation Color Code from ORANGE to YELLOW.
  • The HVO reports: “More than 100 events occurred between 3–9 a.m. at depths of 0.6–1.8 miles beneath the surface. Most events were smaller than magnitude-3, though there were eight events larger. The largest event was a magnitude-3.4. Earthquake activity was accompanied by an abrupt change in ground deformation patterns in the upper East Rift Zone, shown by the ESC tiltmeter. Tiltmeters in Kīlauea summit region did not show significant changes associated with this activity.”
  • The observations indicate the “likely movement of magma in the subsurface.” The Alert Level for ground-based hazards was increased from ADVISORY to WATCH
  • Kīlauea erupted most recently briefly on Monday, June 3, southwest of Kaluapele (Kīlauea caldera) within the closed area of Hawai’i Volcanoes National Park. The half-day eruption lasted approximately 12 hours before pausing.

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