Phys.org news tagged with:magnitude https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Are branch faults the 'on-ramps' that lead to great continental transform earthquakes? The five largest continental transform earthquakes since 2000 all originated on a branch of the main fault—and two researchers predict that the next great earthquake of this type will also get its start on a branch or splay fault. https://phys.org/news/2024-09-faults-ramps-great-continental-earthquakes.html Earth Sciences Thu, 26 Sep 2024 09:45:03 EDT news646562701 Could the Muswellbrook earthquakes be caused by coal mining? Geoscientists explain On Friday 23 August, a magnitude 4.8 earthquake near Muswellbrook, New South Wales, shook the state. The earthquake caused local damage and Geoscience Australia received more than 3,600 felt reports, including from Sydney and Canberra, up to 360 kilometers away. https://phys.org/news/2024-08-muswellbrook-earthquakes-coal-geoscientists.html Earth Sciences Environment Tue, 27 Aug 2024 09:40:04 EDT news643970402 7.2 magnitude earthquake shakes southern Peru A magnitude 7.2 earthquake shook the southern coast of Peru early Friday. Authorities say there are no immediate reports of casualties. https://phys.org/news/2024-06-magnitude-earthquake-southern-peru.html Environment Fri, 28 Jun 2024 03:42:53 EDT news638764969 New study reveals impact of baseline choice on 2022 Yangtze River Valley heat wave extremity In the summer of 2022, China's Yangtze River Valley (YRV) endured an unprecedented heat wave, severely affecting human society and ecosystems. Traditionally, the extremity of such hot events has been evaluated against a fixed historical baseline (e.g., 1979–2022), suggesting record-breaking magnitudes. However, recent research underscores the significance of the chosen baseline in quantifying these extremes. https://phys.org/news/2024-06-reveals-impact-baseline-choice-yangtze.html Environment Tue, 25 Jun 2024 10:41:34 EDT news638530892 Study shows magnitude of displacements by December 2020 Petrinja earthquake The December 2020 earthquake near the Croatian town of Petrinja (magnitude 6.4) was felt in all Croatia and in many places in the neighboring countries, and caused serious damage at the site. A recent Croatian-Hungarian collaboration has analyzed the horizontal and vertical displacements caused by the quake and placed them in a regional geodynamic interpretation frame. https://phys.org/news/2024-06-magnitude-displacements-december-petrinja-earthquake.html Earth Sciences Mon, 24 Jun 2024 13:09:08 EDT news638453346 Earthquake of magnitude 6.3 strikes off southern Peru A 6.3 magnitude earthquake struck off the coast of southern Peru on Sunday but there was no immediate threat of tsunami, government scientists said. https://phys.org/news/2024-06-earthquake-magnitude-southern-peru.html Environment Sun, 16 Jun 2024 15:02:34 EDT news637768946 Faster alerts for California megaquakes: Early-warning system gets major upgrade California's earthquake early-warning system is getting a seismic upgrade, one that will allow residents to receive more timely alerts about shaking from an incoming megaquake. https://phys.org/news/2024-06-faster-california-megaquakes-early-major.html Earth Sciences Environment Thu, 06 Jun 2024 09:02:35 EDT news636883351 Fault maturity or orientation: Which matters more for quakes? In the early morning of 22 May 2021, a magnitude 7.4 quake rattled China's remote Maduo County on the Tibetan Plateau. It was the most recent in a series of nine earthquakes with a magnitude of 7 or greater since 1997, and its surface rupture was twice as long as the global average for similarly sized quakes. The tremor occurred on the eastern part of the relatively immature left-lateral Jiangcuo fault system, which slips slowly, about 1 millimeter per year, and was unmapped before the quake. https://phys.org/news/2024-04-fault-maturity-quakes.html Earth Sciences Thu, 11 Apr 2024 13:30:02 EDT news632061001 Q&A: What to make of the earthquake that rattled the Northeast The 4.8 magnitude earthquake that shook the Northeast on April 5 didn't seem to cause much damage, but it was enough to send tremors of concern through anyone who felt it. It's not that the region never experiences seismic shifts. It's just that most earthquakes in the region go undetected. https://phys.org/news/2024-04-qa-earthquake-rattled-northeast.html Earth Sciences Mon, 08 Apr 2024 15:15:03 EDT news631808101 What causes earthquakes in the Northeast, like the magnitude 4.8 that shook New Jersey? A geoscientist explains It's rare to feel earthquakes in the U.S. Northeast, so the magnitude 4.8 earthquake in New Jersey that shook buildings in New York City and was felt from Maryland to Boston on April 5, 2024, drew a lot of questions. It was one of the strongest earthquakes on record in New Jersey, though there were few reports of damage. A smaller, magnitude 3.8 earthquake and several other smaller aftershocks rattled the region a few hours later. We asked geoscientist Gary Solar to explain what causes earthquakes in this region. https://phys.org/news/2024-04-earthquakes-northeast-magnitude-shook-jersey.html Earth Sciences Environment Mon, 08 Apr 2024 13:30:01 EDT news631800480 Taiwan earthquake: An earthquake scientist on what we know so far and what may happen next Earlier today, a major earthquake of magnitude 7.4 struck the central east coast of Taiwan, roughly 20 kilometers south of the city of Hualien. https://phys.org/news/2024-04-taiwan-earthquake-scientist.html Earth Sciences Environment Wed, 03 Apr 2024 12:30:01 EDT news631365960 Magnitude 2.8 earthquake shakes southern Illinois; no damage or injuries reported An earthquake of magnitude 2.8 has been reported in southern Illinois, near the Missouri state line, the U.S. Geological Survey reported. https://phys.org/news/2024-03-magnitude-earthquake-southern-illinois-injuries.html Environment Fri, 29 Mar 2024 13:37:01 EDT news630938219 Hubble views dim but distinct spiral galaxy UGC 11105 This image of the softly luminous spiral galaxy UGC 11105 is from the NASA/ESA Hubble Space Telescope. It lies about 110 million light-years from Earth in the constellation Hercules. https://phys.org/news/2024-02-hubble-views-dim-distinct-spiral.html Astronomy Mon, 05 Feb 2024 12:09:02 EST news626357342 Powerful earthquake shakes South Pacific nation of Vanuatu; no tsunami threat A powerful earthquake shook the South Pacific island nation of Vanuatu on Thursday evening, but countries in the region said there was no threat of a tsunami. https://phys.org/news/2023-12-powerful-earthquake-south-pacific-nation.html Environment Thu, 07 Dec 2023 11:06:15 EST news621169574 Subducted seamounts may lead to larger earthquakes There are thousands of mountains scattered across the seafloor, many of which are thousands of meters tall. These seamounts may have significant impacts on seismicity when the portion of the ocean floor they are on is subducted beneath another tectonic plate. https://phys.org/news/2023-11-subducted-seamounts-larger-earthquakes.html Earth Sciences Thu, 30 Nov 2023 12:00:29 EST news620568026 A strong earthquake shakes eastern Indonesia with no immediate reports of casualties or damages A strong, deep undersea earthquake shook the eastern side of Indonesia on Wednesday with no immediate reports of casualties or damages in the area. https://phys.org/news/2023-11-strong-earthquake-eastern-indonesia-casualties.html Environment Wed, 22 Nov 2023 04:47:05 EST news619850823 A series of powerful earthquakes shakes eastern Indonesia. No immediate reports of casualties A series of powerful and shallow earthquakes shook a sparsely populated island chain in eastern Indonesia on Wednesday. There were no immediate reports of damage or casualties. https://phys.org/news/2023-11-series-powerful-earthquakes-eastern-indonesia.html Environment Wed, 08 Nov 2023 04:50:49 EST news618641447 Earthquake rattles Greek island near Athens, but no injuries or serious damage reported A magnitude 5.1 earthquake rattled an island near Athens early Friday, but local officials had no immediate reports of injuries or serious damage. https://phys.org/news/2023-11-earthquake-rattles-greek-island-athens.html Environment Fri, 03 Nov 2023 05:28:57 EDT news618208135 Earthquake slightly damages houses in southeastern Indonesia, but no casualties reported An earthquake slightly damaged houses and other buildings in southeastern Indonesia early Thursday, causing some panic but no apparent casualties. https://phys.org/news/2023-11-earthquake-slightly-houses-southeastern-indonesia.html Environment Thu, 02 Nov 2023 05:02:45 EDT news618120163 Morocco quake not in most active area but expect aftershocks: expert The powerful earthquake that struck Morocco, killing more than 2,000 people, didn't hit in the most active seismological region, said one French expert. But aftershocks can be expected, he warned. https://phys.org/news/2023-09-morocco-quake-area-aftershocks-expert.html Environment Sat, 09 Sep 2023 15:40:15 EDT news613492804 Researchers categorize foreshocks for large earthquakes Seismologists agree that foreshocks are the most widely identified signal of an upcoming mainshock earthquake. But do these foreshock sequences have distinctive characteristics that separate them from aftershock sequences, and could these characteristics be used to help forecast mainshocks? https://phys.org/news/2023-06-categorize-foreshocks-large-earthquakes.html Earth Sciences Wed, 28 Jun 2023 15:42:03 EDT news607185721 Strong earthquake rattles northern Japan; no damage reported A magnitude 6.2 earthquake shook Japan's northernmost main island of Hokkaido on Sunday, but there were no immediate reports of damage or injuries. https://phys.org/news/2023-06-strong-earthquake-rattles-northern-japan.html Environment Sun, 11 Jun 2023 07:05:21 EDT news605685917 5.5 magnitude earthquake, large aftershock hit Northern California; minor damage reported Earthquakes have rattled a large area of Northern California this week, but only minor damage was immediately reported. https://phys.org/news/2023-05-magnitude-earthquake-large-aftershock-northern.html Environment Fri, 12 May 2023 12:20:17 EDT news603112814 Magnitude 7.1 quake hits remote Pacific, no tsunami threat A magnitude 7.1 quake struck in a remote part of the Pacific Ocean on Monday but did not appear to generate a tsunami. https://phys.org/news/2023-04-magnitude-quake-remote-pacific-tsunami.html Environment Mon, 24 Apr 2023 07:53:33 EDT news601541605 Turkey's next quake: Research shows where, how bad—but not 'when' Researchers know a lot about Turkey's next major earthquake. They can pinpoint the probable epicenter, estimate its strength and see the spatial footprint of where damage is most likely to occur. https://phys.org/news/2023-04-turkey-quake-badbut.html Earth Sciences Thu, 20 Apr 2023 13:48:02 EDT news601217281 The magnitude of the 2023 Turkish earthquake matches the largest in the country's history, according to new study On February 6, 2023, two powerful earthquakes successively occurred in Turkey, resulting in significant damage and loss of life across southeast Turkey and northwest Syria. As a fundamental parameter, their magnitudes are of great interest to the scientific community and the general public at large. https://phys.org/news/2023-04-magnitude-turkish-earthquake-largest-country.html Earth Sciences Tue, 11 Apr 2023 14:19:00 EDT news600441536 At least 14 killed as strong quake jolts Ecuador and Peru At least 14 people were killed, several were wounded and buildings were damaged in a powerful earthquake that shook Peru and Ecuador Saturday, authorities said. https://phys.org/news/2023-03-strong-quake-jolts-ecuador-peru.html Environment Sun, 19 Mar 2023 07:00:02 EDT news598427829 Alaska study compares ground motion, magnitude estimates from satellite and seismic records When it comes to making a rapid estimate of ground motion and moment magnitude for an earthquake, using data from Global Navigation Satellite Systems (GNSS) might be a good alternative or addition to data from seismic stations. https://phys.org/news/2023-03-alaska-ground-motion-magnitude-satellite.html Earth Sciences Wed, 08 Mar 2023 12:45:33 EST news597501929 Back-to-back mega-quakes devastated Turkey. California faces similar aftershock threat The mega-quakes in Turkey this week showcase how a magnitude 7.8 quake could trigger a magnitude 7.5 aftershock on a different fault, with 60 miles of distance between the epicenters. https://phys.org/news/2023-02-back-to-back-mega-quakes-devastated-turkey-california.html Earth Sciences Thu, 09 Feb 2023 14:10:01 EST news595173251 Turkey-Syria earthquakes: A seismologist explains what has happened An extremely large earthquake has occurred in the southeast of Turkey, near the border with Syria. Data from seismometers which measure shaking of the ground caused by earthquake waves suggest this this event, in the early morning of February 6, was a magnitude 7.8 out of 10 on the moment magnitude scale. Seismic waves were picked up by sensors around the world (you can watch them ripple through Europe) including places as far away as the UK. https://phys.org/news/2023-02-turkey-syria-earthquakes-seismologist.html Earth Sciences Tue, 07 Feb 2023 13:25:05 EST news594998701