Taiwan earthquake sequence may signal future shocks
Magnitude-6.5 and 6.9 earthquakes struck Taiwan’s seismically active east coast this week. The risk of more shaking is now elevated. By Shinji Toda, Ph.D., IRIDeS, Tohoku University, and Ross …
Terremoto en México parcialmente recarga falla que causó el devastador sismo de 1985
Aunque sea poco probable que este cause otro gran terremoto en el futuro cercano, aproximadamente una cuarta parte de la superficie de la falla que causó el terremoto de 1985 …
Mexico earthquake partially reloads fault that ruptured in devastating 1985 shock
Though unlikely sufficient to trigger another great earthquake soon, about one-quarter of the fault surface that broke in the 1985 earthquake is now closer to failure. By Ross S. …
México es sacudido por dos terremotos
El terremoto, que se generó en la costa del Pacifico en México, redistribuyó los esfuerzos en la región. Por Hector Gonzalez-Huizar, Ph.D., Centro de Investigación Científica y de Educación …
Mexico rattled by pair of earthquakes
The earthquake, which struck along Mexico’s Pacific coast, redistributed stress in the region. By Hector Gonzalez-Huizar, Ph.D., Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California …
Rodgers Creek Fault shakes Bay Area, not for the first time
On Tuesday, the Bay Area was reminded once again that the faults that dissect the region are active. Local streams record how the region’s faults slowly shape the landscape. …
Fault that caused a July quake in the Philippines still in question
A segment of the Philippine Fault system is the main suspect for the recent magnitude-7.0 earthquake. But surface ground rupture has not yet been found. Is that the whole story? …
Multiple factors make Afghan communities vulnerable to earthquakes
When a magnitude-6.1 quake struck Afghanistan in June, long-standing vulnerabilities — including a heavily faulted region, traditional adobe-style construction, and lack of enforceable building codes — were again revealed. …
Megathrust earthquakes impact surrounding seismicity for centuries
Aftershocks of large earthquakes can be highly destructive. New evidence has emerged of both a shutdown and a persistence of such shocks following megathrust events throughout history. Ross S. …
Drilling into a fault to capture 3D earthquake behavior
To know what happens to a fault during an earthquake, we need to have our eyes on it. A new drilling project gets instruments as close as possible to the …
Shallow earthquake strikes west of Manila, Philippines
The magnitude-6.4 earthquake didn’t damage infrastructure, but it’s the latest to remind us that the Manila trench can generate big quakes near a populous metropolis. By Mario Aurelio, Sandra …
玉里地震以及它的警示
玉里地震的特性與過去的地震活動相近，而未來鄰近區域有發生大地震的可能性。 陳薇安、高若甄、詹忠翰 (中央大學地震災害鏈風險評估及管理研究中心) 引文: Chen, W., Kao J., Chan C., 2022, Magnitude-6.6 earthquake warns east-central Taiwan of shaking potential, Temblor, http://doi.org/10.32858/temblor.248 This article is also available in …
Magnitude-6.6 earthquake warns east-central Taiwan of shaking potential
The pattern of recent earthquakes in the area indicated this event was likely, and an even larger quake is possible in the future. By Wei-An Chen, B.S., Jo-Chen Kao, …
東北太平洋沿岸域を襲った三つ子の地震と未破壊域
3月16日深夜に東北地方を襲い東京に停電をもたらしたマグニチュード7．3の地震は，2011年東北沖地震の余震活動の1つとみられる 遠田晋次（東北大学災害科学国際研究所） ロス スタイン（テンブラー社） Citation: Toda, S., Stein, R., 2022, ‘Triplet’ earthquakes strike near Tohoku, Japan, but a rupture gap remains, Temblor, http://doi.org/10.32858/temblor.246 This article is also …
‘Triplet’ earthquakes strike near Tohoku, Japan, but a rupture gap remains
Wednesday’s magnitude-7.3 quake, which shook large parts of Honshu and knocked out power to Tokyo, is the latest in a series of large aftershocks from the 2011 Tohoku earthquake. …
Le tremblement de terre d’Haïti capturé par des citoyens-sismologues
Le réseau sismologique national d’Haïti était hors service lors du tremblement de terre de magnitude 7,2 survenu en 2021, mais un réseau de sismomètres peu coûteux hébergés par des citoyens …
Haiti earthquake captured by citizen-seismologists
Haiti’s national seismometer network was down during the 2021 magnitude-7.2 earthquake, but a collection of low-cost citizen-hosted seismometers filled in. By Eric Calais, Ph.D., Ecole normale supérieure, and co-authors …
Underwater volcanoes are difficult to monitor. Tonga eruption shows why
Tonga’s underwater eruption hints at need for more seismic stations near such active, submarine volcanoes located near populated parts of the Pacific. By Lise Retailleau, Ph.D., Observatoire Volcanologique du …
Gempa M6.2 mengguncang Pasaman, Sumatra Barat, Indonesia
Gempa mengguncang sebagian Sumatra dan Malaysia, menyababkan kerusakan dan korban jiwa. Oleh: Anne Sirait, Ph.D., Program Studi Geofisika, Universitas Indonesia, Dr. Daryono, BMKG Kutipan: Sirait, A., Daryono, 2022, …
Magnitude-6.2 earthquake strikes Pasaman, West Sumatra, Indonesia
The earthquake shook parts of Sumatra and Malaysia. Some damage and casualties were reported. By Anne Sirait, Ph.D, Department of Geophysics, University of Indonesia, Dr. Daryono Indonesian Agency for …
Gempa intraslab mengguncang (setengah) Java, Indonesia lagi
Gempa bermagnitude 6,6 mengguncang Jawa di pertengahan Januari, menyebabkan guncangan, tanpa tsunami. Oleh Anne Sirait, Ph.D., Program Studi Geofisika, Universitas Indonesia Citation: Sirait, A., 2022, Intraslab earthquake shakes …
Intraslab earthquake shakes (half of) Java, Indonesia, again
A magnitude-6.6 earthquake rattled Java in mid-January, causing shaking, but no tsunami. By Anne Sirait, Ph.D., Department of Geophysics, University of Indonesia Citation: Sirait, A., 2022, Intraslab earthquake …
North of Los Angeles, Faults Share Earthquakes
The San Andreas and the San Jacinto faults have simultaneously ruptured in at least three earthquakes over the past 2000 years. By Alba M. Rodriguez Padilla, Ph.D. candidate, UC …
新的一年北台灣的地動山搖
1 月 3 日台灣東部外海規模 6.0 的地震撼動了台北市區，但靠近震央的城市只有感覺到輕微的震動。 陳薇安、詹忠翰 (中央大學地震災害鏈風險評估及管理研究中心) Citation: Chen, W., Chan, C., 2022, Northern Taiwan starts the new year with a jolt, Temblor, http://doi.org/10.32858/temblor.234 This article …
Northern Taiwan starts the new year with a jolt
An offshore magnitude-6.0 earthquake on January 3 rattled the Taipei metropolitan area, but cities closer to the epicenter felt only light shaking. By Wei-An Chen, B.S., and Chung-Han Chan, …
Luzon, Philippines, sees sixth strong earthquake in five months
Is this an unusually productive aftershock sequence, or could these quakes prove to be foreshocks of a larger event that has yet to strike? By Mario Aurelio, Director of …
Strong earthquake swarm ongoing off Oregon coast
The Pacific Northwest was jolted into the spotlight on Wednesday, when a series of strong earthquakes off the Oregon coast awakened fears of a big one. By Jochen Braunmiller, …
El terremoto de Acapulco ocurrió en el límite de una brecha sísmica
El 7 de septiembre del 2021 ocurrió un fuerte terremoto cerca de Acapulco, México. El terremoto pudo haber incrementado la posibilidad de que ocurra un gran terremoto en la Brecha …
Newly identified fault in Seal Beach, CA, quietly rattles beneath the city
A recent high-density seismic survey illuminated the previously unmapped fault and highlighted the challenge of determining earthquake hazard in the Los Angeles Basin. By Dan Gish and Steve Boljen, …
Acapulco earthquake struck the edge of a seismic gap
On September 7, 2021, a strong earthquake struck near Acapulco, Mexico. The earthquake may have increased the likelihood of a larger magnitude earthquake within the Guerrero Seismic Gap. By …
Hawaiʻi quake likely related to tectonic plate bending
On October 10, 2021, a magnitude-6.2 earthquake near the southern coast of the Big Island shook residents and visitors across the state of Hawaiʻi. By Liliane M.L. Burkhard, Lauren …
Magnitude-5.7 na lindol sa Batangas, palaisipan sa mga mananaliksik
Ang pagyanig ng Lunes, ang pangatlong katamtamang lindol sa loob ng siyam na linggo, ay naganap kung saan nabawasan ang stress pagkatapos ng isang malakas na lindol noong Hulyo. Nais …
An overlooked hazard can cause damage weeks after an earthquake strikes
Following the 1999 Chi-Chi earthquake in Taiwan, buildings were found precariously balanced on a slope. New modeling shows how to better plan for such damage. By Judith Hubbard, Ph.D. …
Magnitude-5.7 Batangas earthquake puzzles researchers
Monday’s tremor, the third moderate earthquake in nine weeks, occurred where stress had decreased after a strong earthquake in July. Researchers want to know why. By Mario Aurelio, Director …
What controlled damage patterns during Australia earthquake?
The largest earthquake in Victoria in at least two centuries rattled buildings across Melbourne, but some were damaged more than others. By Mark Leonard, Ph.D., Leonard Seismic Consulting …
Australia surprised by moderate quake, but rumbling is not unusual
Like a tree falling in the forest, if there is no one around to feel it, then an earthquake goes unnoticed. That doesn’t mean it didn’t happen. By Caroline …
Moderate quake rattles southeastern Australia. Where’s the fault?
The magnitude-5.9 earthquake reminded residents that Victoria is active — geologically speaking — but identifying the fault responsible is complicated. By Dee Ninis, Ph.D. (@DeeNinis) and Elodie Borleis, B.Sc. …
Mixed earthquake signals in the South Sandwich Islands
Aftershocks of the multiple large-magnitude earthquakes that occurred recently in the South Sandwich Islands suggest shallow rupture to the trench. By Judith Hubbard, Ph.D., Earth Observatory of Singapore, Nanyang …
Philippines fault Niyanig muli ang Batangas sa 5.8 magnitude na lindol
Ang 5.8-magnitude na lindol na naganap sa baybayin ng Batangas sa katimugang Luzon, Pilipinas, tatlong linggo lamang matapos ang isang 6.6 magnitude na lindol ay tumama sa parehong rehiyon, ay …
Isa pang malaking lindol ang tumama sa katimugang bahagi ng Pilipinas
Ang Magnitude-7.3 na lindol na tumama sa baybayin ng Mindanao, Pilipinas, ngayong linggo ay maaaring magdulot ng matinding pinsala kung ang lindol ay mababaw at nasa baybayin. Isinulat nina …
¿Los terremotos de Haití de 2010 y 2021 forman parte de una secuencia progresiva?
Es muy probable que el terremoto de Haití del 2010 haya acelerado la ocurrencia del terremoto del 14 de agosto del 2021. Múltiples observaciones apuntan hacia una migración sísmica en …
Philippines fault jolts Batangas again, with magnitude-5.8 quake
A magnitude-5.8 earthquake that occurred off the coast of Batangas in southern Luzon, Philippines, only three weeks after a magnitude-6.6 earthquake struck the same region, is a reminder of the …
2021年及2010年海地大地震是渐进破裂过程中的一部分吗？
2010 年的海地7.0级地震可能加快了 2021 年 8 月 14 日海地7.2级地震的发生。 一些证据显示海地的地震系列正在向西延伸，但海地东部断层的高应力区仍然存在。 原文作者：Ross Stein (美国Temblor, Inc., California); Shinji Toda 远田晋次 (日本东北大学); Jian Lin 林间 (中科院南海海洋研究所/南方科技大学/美国伍兹霍尔海洋研究所); Volkan Sevilgen (美国Temblor, Inc., California) 中文翻译：郭宗林（中科院南海海洋研究所）；郭来银（南方科技大学）；周志远（中科院南海海洋研究所） …
Les tremblements de terre de 2021 et 2010 en Haïti font-ils partie d’un ordre progressif?
Le tremblement de terre de 2010 en Haïti a probablement rapproché la faille qui s’est rompue, le 14 août 2021 de sa rupture originale. Certains éléments suggèrent une progression du …
2010年ハイチ地震（M7.0），2021年ハイチ地震（M7.2）は長大断層の破壊進展過程を示しているのか．
甚大な被害をもたらした2010年のマグニチュード（M）7.0のハイチ地震は2021年８月14日のM7.2地震を促進した可能性が高い．今後も時間差を置いて同様の大地震が２つの震源の西側で起きやすい状況が続くと考えられる．一方で，首都ポルトープランスを含む東側にも伝播した歪みは残っており予断を許さない． By ロス・スタイン（テンブラー社），遠田晋次（東北大学災害科学国際研究所）， ジン・リン（南方科技術大学，ウッズホール海洋研究所）， ボルカン・セビルゲン（テンブラー社） Citation: Stein, R.S., Toda, S., Lin, J., Sevilgen, V., 2021, Are the 2021 and 2010 Haiti earthquakes part of a progressive sequence?, Temblor, …
Are the 2021 and 2010 Haiti earthquakes part of a progressive sequence?
Haiti’s 2010 earthquake likely brought the fault that ruptured in the Aug. 14, 2021 quake closer to failure. Some elements suggest a westward earthquake progression, but highly stressed sections of …
Another large earthquake strikes the southern Philippines
The magnitude-7.3 earthquake that struck off the coast of Mindanao, Philippines, this week could have inflicted heavy damage had the quake been shallow and onshore. By Mario Aurelio, Director …
Alaska’s Chignik earthquake shows segmented subduction zone
What’s the relationship between July’s magnitude-8.2 quake off the Alaska Peninsula and last summer’s magnitude-7.8 Simeonof quake? By Connor Drooff, Ph.D. Candidate, Michigan State University Citation: Drooff, C., …
Hindu texts help scientists communicate earthquake hazards in Nepal
To connect with Nepalis about earthquake hazards, scientists must understand religious beliefs regarding the source of shaking, gleaned from ancient Hindu epics. By Shiba Subedi, Institute of Earth Sciences, …
Ang pinakahuling malakas na lindol sa Pilipinas ay nagpapakita ng pagiging kumplikado ng lugar
Ang pagiging komplikado ng pag-galaw ng lupa sa rehiyon, o ang tinatawag sa ingles na “tectonics”, kung saan naganap ang lindol noong Hulyo 24 ay nagpapaliwanag lamang sa maraming pagyanig …
Latest Philippine earthquake reveals tectonic complexity
The magnitude-6.6 earthquake that struck Luzon, Philippines, on July 24 showcases the benefits of citizen science and serves as a wakeup call. Editor’s note: This article was updated on …
Tectonic mystery swirls as earthquake rocks California-Nevada border
On July 8, 2021, a magnitude-6.0 earthquake in the Central Walker Lane fault zone shook California and Nevada. Walker Lane presents some conundrums. By Ian Pierce, Ph.D., currently at …
Semantics at the Salton Sea: When does a swarm become a sequence?
When the ground along the Salton Sea began shaking on June 5 and didn’t stop, scientists thought it was another swarm. But was it? By Debi Kilb, Ph.D., Scripps …
なぜ宮城・福島県沖で 3つの M7地震が続発したのか？
M7地震の関連性をみると， 3月の地震が5月の地震を誘発した可能性は高いが，最初の2月の地震が3月の地震を促した明確な証拠はない． 遠田晋次（東北大学災害科学国際研究所） スタイン ロス（Ross S. Stein，Temblor社） Citation: Toda, S., Stein, R., 2021, Recent large Japan quakes are aftershocks of the 2011 Tohoku Earthquake, Temblor, http://doi.org/10.32858/temblor.175 …
Recent large Japan quakes are aftershocks of the 2011 Tohoku Earthquake
Less clear is whether the three magnitude-7 quakes in the past 80 days are part of a chain reaction. The sequence has nevertheless left some faults closer to failure, so …
Representation matters in earthquake ‘felt reports’
Earthquake ‘felt reports’ can help determine where critical resources should be sent after a major quake. But these accounts may be biased toward those who have the means to report. …