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Discontinuous earthquake-like event
A slow earthquake, also known as a silent earthquake, is a discontinuous, earthquake-like event that releases energy over a period of hours to months,
Slow_earthquake
Sudden movement of the Earth's crust
by the 2001 Kunlun earthquake has been attributed to the effects of the sonic boom developed in such earthquakes. Slow earthquake ruptures travel at unusually
Earthquake
triggered earthquakes, a result of the effects of other earthquakes at considerable distance, outside of the immediate aftershock zones. Slow earthquake, a discontinuous
Types_of_earthquake
Earthquake in Japan
5. Slip associated with this earthquake continued for more than a year and it has been termed an 'ultra-slow earthquake'. The northern part of Honshu
1994 offshore Sanriku earthquake
1994_offshore_Sanriku_earthquake
9.4–9.6 magnitude earthquake in Chile
The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) occurred on 22 May
1960_Valdivia_earthquake
Extent of slip in the Earth's crust that occurs during an earthquake
rupture dimensions of the smallest earthquakes, suggesting that it is smaller than 100 m while other evidence, such as a slow component revealed by low-frequency
Earthquake_rupture
Type of earthquake which triggers a tsunami of far-larger magnitude
tsunami earthquakes are typically about 1.0 km per second, compared to the more normal 2.5–3.5 km per second for other megathrust earthquakes. These slow rupture
Tsunami_earthquake
Measure of earthquake size
to 1 for regular earthquakes but much smaller for slower earthquakes such as tsunami earthquakes and slow earthquakes. Two earthquakes with identical M
Moment_magnitude_scale
2002 earthquake in Iran
An earthquake occurred on 22 June 2002 with the epicenter near the city of Bou'in-Zahra in Iran's Qazvin province. The region is crossed by several major
2002_Bou'in-Zahra_earthquake
Earthquake off the coast of Iwate Prefecture, Japan
UTC), a MJMA 7.7 (Mw 7.4–7.5) earthquake struck off the Sanriku Coast of Honshu, Japan, along the Japan Trench. The earthquake caused strong shaking in Iwate
2026_Sanriku_earthquake
Major earthquakes in the Turkey–Syria border region
On 6 February 2023, two earthquakes devastated southern and central Turkey and northern and western Syria. The first earthquake occurred at 04:17:35 TRT
2023_Turkey–Syria_earthquakes
M7.2 and M7.5 doublet earthquake
2026, two large strike-slip earthquakes affected northwestern and central Venezuela. The epicenter of the first earthquake was in Veroes Municipality,
2026_Venezuela_earthquakes
Natural disaster in Indonesia
side of Nias. 1843 Nias earthquake List of earthquakes in Indonesia List of historical earthquakes List of tsunamis Slow earthquake Martin, S. S.; Cummins
1861_Sumatra_earthquake
Seismological phenomenon observed in some subduction zones
characterized by non-earthquake seismic rumbling, or tremor, and slow slip along the plate interface. Slow slip events are distinguished from earthquakes by their
Episodic_tremor_and_slip
Type of earthquake at convergent plate boundaries
Megathrust earthquakes occur at convergent plate boundaries, where one tectonic plate is forced underneath another. The earthquakes are caused by slip
Megathrust_earthquake
Earth scientist (1959–2023)
Tibetan Plateau. His research interests shifted in later years to slow-earthquake mechanics, early Earth tectonics, and planetary studies. Yin was born
An_Yin
Tectonic boundary in North America
types of earthquakes (or seismicity); including slow earthquakes, megathrust earthquakes, interplate earthquakes, and intraplate earthquakes. Unlike other
Cascadia_subduction_zone
Natural phenomenon
aseismic slow slips, or earthquake swarms. Understanding the irregularity of these different slip types is crucial to comprehending earthquakes cycles.
Earthquake_cycle
This is a list of earthquakes in 2026. Only earthquakes of magnitude 6 or above are included, unless they result in significant damage and/or casualties
List_of_earthquakes_in_2026
9.2–9.3 earthquake struck with its epicenter off the west coast of Aceh, in northern Sumatra, Indonesia. The undersea megathrust earthquake, known in
2004 Indian Ocean earthquake and tsunami
2004_Indian_Ocean_earthquake_and_tsunami
Earthquake in which the rupture propagation speeds are greater than the shear wave speed
In seismology, a supershear earthquake is when the propagation of the rupture along the fault surface occurs at speeds in excess of the seismic shear wave
Supershear_earthquake
Earthquake impacting Myanmar and Thailand
2025, at 12:50:52 MMT (06:20:52 UTC), a moment magnitude (Mw) 7.7–7.9 earthquake struck the Sagaing Region of Myanmar, with an epicenter close to Mandalay
2025_Myanmar_earthquake
Seismology Term
detaches and begins to slip by slow. It often occurs before a major earthquake occurs at the plate boundary. Slow earthquake Uyead, Seiya; Nahaio, Toshiyasu;
Pre-slip
Minor tectonic plate from the northern end of Taiwan to the southern tip of Kyūshū
hosts typical earthquakes, like the 1911 Kikai Island earthquake, and various types of slow earthquakes, including low frequency earthquakes, very low frequency
Okinawa_plate
Origin point beneath an air explosion
seismology, the hypocenter of an earthquake is its point of origin below ground; a synonym is the focus of an earthquake. Generally, the terms ground zero
Hypocenter
S-wave P-wave Rayleigh wave Transverse wave Seismic microzonation Slow earthquake Strong ground motion "気象庁|長周期地震動階級について". www.data.jma.go.jp. Retrieved
Long-period_ground_motion
Surface displacement along a geological fault without earthquakes occurring
Hayward Fault Zone Maacama Fault Slow earthquake Surface rupture Schwartz, Susan Y.; Rokosky, Juliana M. (2007). "Slow slip events and seismic tremor at
Aseismic_creep
Earthquake in Japan
On 1 January 2024, at 16:10:09 JST (07:10:09 UTC), a MJMA7.6 (Mw7.5) earthquake struck 6 km (3.7 mi) north-northeast of Suzu, located on the Noto Peninsula
2024_Noto_earthquake
Scales to describe earthquake strength
magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize
Seismic_magnitude_scales
Earthquake and tsunami affeting Central America
advisory along the Central American coasts. They evaluated the event as a slow earthquake at 22:47. Eleven minutes later, the PTWC raised their advisory to a
2012_El_Salvador_earthquake
Point on the Earth's surface that is directly above the hypocenter in an earthquake
where an earthquake or an underground explosion originates. The primary purpose of a seismometer is to locate the initiating points of earthquake epicenters
Epicenter
Earthquake that occurs at the boundary between two tectonic plates
interplate earthquakes are sometimes preceded by an irregular occurrence of small tremors. Precursory tremors are often associated with slow slip along
Interplate_earthquake
Scientific study of earthquakes and propagation of elastic waves through a planet
σεισμός (seismós), meaning 'earthquake', and -λογία (-logía), meaning 'study of') is the scientific study of earthquakes (or generally, quakes) and the
Seismology
Magnitude 7.9 earthquake in Nepal
The April 2015 Nepal earthquake (also known as the Gorkha earthquake) killed 8,962 people and injured 21,952 across the countries of Nepal, India, China
April_2015_Nepal_earthquake
8.3 magnitude earthquake
2014-09-12. "Space-time distribution of interplate moment release including slow earthquakes and the seismo-geodetic coupling in the Sanriku-oki region along the
1968_Tokachi_earthquake
Earthquake off the coast of Aomori Prefecture, Japan
(14:15:10 UTC), a Mw 7.6 earthquake struck in the Pacific Ocean off the coast of Aomori Prefecture, Sanriku, Japan. The earthquake generated tsunamis that
2025_Aomori_earthquake
Branch of geophysics, primarily seismology
Earthquake prediction is an operational objective within the broader framework of earthquake forecasting, specifically representing a forecast where uncertainty
Earthquake_prediction
Oceanic trench part of the Pacific Ring of Fire off northeast Japan
magnitude 7.7 earthquake was recorded in Sanriku-oki that may have been triggered by the slow slip observed earlier. Many other earthquakes have been recorded
Japan_Trench
Earthquake that occurs under a body of water, especially an ocean
A submarine, undersea, or underwater earthquake is an earthquake that occurs underwater at the bottom of a body of water, especially an ocean. They are
Submarine_earthquake
Sustained ground vibration associated with underground movement of magma or volcanic gas
swarms of long-period earthquakes and is distinguished by the term episodic tremor and slip (ETS) and may occur during slow earthquakes. Iceberg impacts with
Harmonic_tremor
Series of water waves
displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions, underwater explosions, landslides, glacier calvings
Tsunami
Magnitude 7.0 Mw earthquake
A catastrophic magnitude 7.0 Mw earthquake struck Haiti at 16:53 local time (21:53 UTC) on Tuesday, 12 January 2010. The epicenter was near the town of
2010_Haiti_earthquake
2015 mountaineering disaster
In the afternoon of 25 April 2015, a 7.8 moment magnitude earthquake struck Nepal and surrounding countries. Tremors from the quake triggered an avalanche
2015_Mount_Everest_avalanches
Capital city of New Zealand
Wellington City Council to be earthquake-prone, and the costs of meeting new standards. Every five years, a year-long slow earthquake occurs beneath Wellington
Wellington
of strike-slip, all of which are associated with major earthquakes. Many intraplate earthquakes of smaller magnitude also occur very regularly due to the
List of earthquakes in the Philippines
List_of_earthquakes_in_the_Philippines
Earthquake in Miyazaki Prefecture, Japan
7.1 earthquake struck in the Hyūga Sea off the coast of Miyazaki Prefecture, Kyushu, Japan, 20 km (12 mi) northeast of Nichinan. The earthquake resulted
2024_Hyūga-nada_earthquake
Smaller earthquake which follows a larger one in the same area
In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust
Aftershock
Geophysicist researcher
great earthquake". National Science Foundation. October 26, 2022. Retrieved 13 December 2022. Becker, Rachel (August 30, 2016). "Slow Earthquakes Are a
Demian_Saffer
Series of localized seismic events within a short time period
In seismology, an earthquake swarm is a sequence of seismic events occurring in a local area within a relatively short period. The time span used to define
Earthquake_swarm
Type of motion along a fault
occurs over months to years, after an earthquake. Afterslips can either take place as a gradual movement (slow-sip) that doesn't create enough energy
Afterslip
July 1995 earthquake in Chile
S2CID 135386871. Kanamori, Hiroo; Rivera, Luis (1 October 2017). "An M_w = 7.7 slow earthquake in 1960 near the Aysén Fjord region, Chile". Geophysical Journal International
1995_Antofagasta_earthquake
Measure of the strength of earthquakes
scale, and the Gutenberg–Richter scale, is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and
Richter_scale
Earthquake that occurs within the interior of a tectonic plate
An intraplate earthquake is an earthquake which occurs in the interior of a tectonic plate. They are relatively rare compared to the more familiar interplate
Intraplate_earthquake
Earthquake in Mexico
not had a large earthquake since the 1911 event. Although several slow earthquakes have been observed in that time interval, an earthquake in the range M
1957_Guerrero_earthquake
Tsunami earthquake in Honshu, Japan
An 8.5 magnitude earthquake occurred at 19:32 (local time) on June 15, 1896, on the Sanriku coast in Honshu, Japan. It resulted in two tsunami waves which
1896_Sanriku_earthquake
Vibrational energy transfer in Earth or other planetary body
from the surface and propagate more slowly than seismic body waves (P and S). Surface waves from very large earthquakes can have globally observable amplitude
Seismic_wave
Magnitude 8.0 earthquake in China
An earthquake occurred in the province of Sichuan, China at 14:28:01 China Standard Time on May 12, 2008. Measuring at 8.0 Ms (7.9–8.3 Mw), the earthquake's
2008_Sichuan_earthquake
Multiple earthquakes with nearly identical waveforms originating from the same location
seismology, doublet earthquakes—and more generally, multiple earthquakes or twin earthquakes—were originally identified as multiple earthquakes with nearly identical
Doublet_earthquake
Instrument that records seismic waves by measuring ground motions
digitally—is a seismogram. Such data is used to locate and characterize earthquakes, and to study the internal structure of Earth. A simple seismometer,
Seismometer
Earthquake in Hyūga-nada
"Possible shallow slow slip events in Hyuga-nada, Nankai subduction zone, inferred from migration of very low frequency earthquakes". Geophysical Research
1968_Hyūga-nada_earthquake
Following the 2023 Turkey–Syria earthquakes, numerous issues were presented to people involved. Multiple agencies submitted figures on life and monetary
Aftermath of the 2023 Turkey–Syria earthquakes
Aftermath_of_the_2023_Turkey–Syria_earthquakes
Subduction zone off the east coast of New Zealand's North Island
develop a model that may explain both the slow slip events but also why large and relatively deep earthquake ruptures are propagated into the shallow areas
Hikurangi_Margin
Seismic intensity scale used to quantify the degree of shaking during earthquakes
the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales
Modified Mercalli intensity scale
Modified_Mercalli_intensity_scale
Megathrust earthquakes are large seismic events that take place along convergent plate boundaries, particularly at subduction zones. Examples of subduction
List of megathrust earthquakes
List_of_megathrust_earthquakes
Arthur; Suyehiro, Shigeji (1981), "A Slow Earthquake Sequence Following the Izu-Oshima Earthquake of 1978", Earthquake Prediction, American Geophysical Union
1978_Izu_Ōshima_earthquake
Earthquake in Morocco
an earthquake with a moment magnitude of 6.9 and maximum Mercalli intensity of IX (Violent) struck Morocco's Al Haouz Province. The earthquake's epicenter
2023_Al_Haouz_earthquake
Earthquake of magnitude 6.7 to 7.8
Mw 7.8, according to different sources. This earthquake belongs to a category of earthquakes with slow rupture velocities and potential of producing
November_1960_Peru_earthquake
6.9-magnitude earthquake in Hawaii
May 5, 2018. "About Earthquakes in Hawaii". Hawaiian Volcano Observatory. Retrieved July 30, 2018. Seismo Blog (May 7, 2018). "A Slow Emergency and a Sudden
2018_Hawaii_earthquake
Branch of seismology
Earthquake forecasting is a branch of the science of geophysics, primarily seismology, concerned with the probabilistic assessment of earthquake occurrence
Earthquake_forecasting
Major geological fault in Northern Chile
Retrieved 9 July 2022. Kanamori, Hiroo; Rivera, Luis (2017). "An Mw =7.7 slow earthquake in 1960 near the Ays´en Fjord region, Chile" (PDF). Geophysical Journal
Liquiñe-Ofqui_Fault
Earthquakes and tsunami near Taiwan
The 2006 Hengchun earthquakes occurred on December 26 at 20:26 and 20:34 local time off the southwest coast of Taiwan in the Luzon Strait, which connects
2006_Hengchun_earthquakes
Geologic feature in California, United States
southern), each with different characteristics and a different degree of earthquake risk. The average slip rate along the entire fault ranges from 0.79 to
San_Andreas_Fault
Type of seismic wave
faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph. P waves may be
P_wave
Earthquake in Iran
An earthquake struck the Kerman province of southeastern Iran at 01:56 UTC (5:26 am Iran Standard Time) on December 26, 2003. The Mw 6.6 (Ms 6.8–7.0) strike-slip
2003_Bam_earthquake
Movement along a thrust fault that is not visible at the surface
A blind thrust earthquake occurs along a thrust fault that does not show signs on the Earth's surface, hence the designation "blind". Such faults, being
Blind_thrust_earthquake
Study of earthquake-resistant structures
buildings and bridges, with earthquakes in mind. Its overall goal is to make such structures more resistant to earthquakes. An earthquake (or seismic) engineer
Earthquake_engineering
Roman market building in Pozzuoli, Italy
and has been subject to repeated "slow earthquakes" or bradyseism of this shallow caldera resulting in relatively slow subsidence over long periods, drowning
Macellum_of_Pozzuoli
Destructive tsunami earthquake south of Java Island
minutes. An abnormally slow rupture at the Sunda Trench and a tsunami that was unusually strong relative to the size of the earthquake were both factors that
2006 Pangandaran earthquake and tsunami
2006_Pangandaran_earthquake_and_tsunami
This list of earthquakes in Ecuador is a list of notable earthquakes that have affected Ecuador in recorded history. The active tectonics of Ecuador is
List of earthquakes in Ecuador
List_of_earthquakes_in_Ecuador
Geographical phenomenon
Remotely triggered earthquakes are a result of the effects of large earthquakes at considerable distance, outside of the immediate aftershock zone. The
Remotely triggered earthquakes
Remotely_triggered_earthquakes
Weather believed to precede earthquakes
Earthquake weather is a type of weather popularly believed to precede earthquakes. Since ancient times, the notion that weather can somehow foreshadow
Earthquake_weather
2012 earthquake near Aceh Province, Indonesia
almost orthogonal faults. This is rare in a single earthquake. This earthquake had an overall relatively slow rupture speed, although the speed was above the
2012_Indian_Ocean_earthquakes
July 4–5, 2019, earthquakes in California
Earthquakes occurred north and northeast of the town of Ridgecrest, California, located in Kern County and west of Searles Valley (approximately 200 km
2019_Ridgecrest_earthquakes
French geophysicist
of a heterogeneous fault. More recently he has been interested in slow earthquakes and in particular in their intermittent nature. Michel Campillo has
Michel_Campillo
American professional soccer club based in San Jose, California
The San Jose Earthquakes are an American professional soccer club based in San Jose, California. The Earthquakes compete in Major League Soccer (MLS)
San_Jose_Earthquakes
Earthquake in Japan
the deeper part of the subduction zone, slow slip events were detected between 1996 and 2017. The earthquake was associated with very strong shaking,
1662_Hyūga-nada_earthquake
Situation or object that can cause harm
disasters with highly harmful impacts on a society are floods, droughts, earthquakes, tropical cyclones, lightning strikes, volcanic activity and wildfires
Hazard
Hindu temple in Lalitpur, Nepal
OnlineKhabar. 2 September 2018. Retrieved 15 January 2021. "The slow job of restoring Nepal's earthquake-damaged heritage". Apollo. 26 April 2016. Retrieved 15
Krishna_Mandir,_Patan
Earthquake in Mexico
The 1985 Mexico City earthquake struck in the early morning of 19 September at 07:17:50 (CST) with a moment magnitude of 8.0 and a maximal Mercalli intensity
1985_Mexico_City_earthquake
Earthquake and tsunami affecting Indonesia
This earthquake occurred with a moment magnitude of 7.8 in a region which is characterized as having a weak seismic coupling. Earthquakes with slow rupture
1994_Java_earthquake
Earthquake and tsunami off the west coast of Nicaragua
Kanamori, Hiroo; Kikuchi, Masayuki (1993). "The 1992 Nicaragua earthquake: a slow tsunami earthquake associated with subducted sediments". Nature. 361 (6414):
1992_Nicaragua_earthquake
building to reduce strains during an earthquake by slowing down the shaking of the building. During an earthquake, the sections of the building are subjected
Dissipator_(building_design)
Intensity of ground shaking during an earthquake
resulting from an earthquake. They are distinguished from seismic magnitude scales, which measure the magnitude or overall strength of an earthquake, which may
Seismic_intensity_scales
Earthquake in Portugal and Morocco
Portugal earthquake struck western Portugal and Morocco on 28 February at 02:40 UTC. Originating west of the Strait of Gibraltar, the earthquake registered
1969_Portugal_earthquake
Magnitude 8 earthquake in Northern China
to the Greater Beijing region, earthquakes of this magnitude are predicted to occur only every 6,500 years along the slow moving fault. Other similar faults
1679_Sanhe–Pinggu_earthquake
Earthquake caused by magma movement
A volcano tectonic earthquake or volcano earthquake is caused by the movement of magma beneath the surface of the Earth. The movement results in pressure
Volcano_tectonic_earthquake
Earthquake with a hypocenter depth exceeding 300 km
A deep-focus earthquake in seismology (also called a plutonic earthquake) is an earthquake with a hypocenter depth exceeding 300 km. They occur almost
Deep-focus_earthquake
Earthquake sequence in South Sudan
of 1.63-1.65 MPa. The earthquake had an aftershock length of 120 km (75 mi). The earthquake was preceded by a low-frequency slow slip signal immediately
1990_South_Sudan_earthquakes
Earthquakes in the Atlantic Ocean
earthquake. The larger and shallower mainshock was a slow-rupturing tsunami earthquake that released 70 percent of the seismic moment. The earthquake
2021 South Sandwich Islands earthquakes
2021_South_Sandwich_Islands_earthquakes
Earthquake in Nicaragua
The 1972 Nicaragua earthquake occurred at 12:29:44 a.m. local time (06:29:44 UTC) on 23 December near Managua, the capital of Nicaragua. It had a moment
1972_Nicaragua_earthquake
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