Evidence map›Paper›PMID 41484122›Full record

ArticleNature communications2026

Structural barriers control the spatial extent of slow earthquake slip.

Takeshi Akuhara, Kazuya Shiraishi, Takeshi Tsuji, Yusuke Yamashita, Hiroko Sugioka, Atikul Haque Farazi, Shukei Ohyanagi, Yoshihiro Ito, Ryuta Arai, Eiichiro Araki and 9 more

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

19 authors.

Takeshi AkuharaEarthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan. akuhara@eri.u-tokyo.ac.jp.ORCID http://orcid.org/0000-0002-6129-8459
Kazuya ShiraishiResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.ORCID http://orcid.org/0000-0001-8200-9081
Takeshi TsujiSchool of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.ORCID http://orcid.org/0000-0003-0951-4596
Yusuke YamashitaFaculty of Humanities, Miyazaki Municipal University, 1-1-2 Funatsuka, Miyazaki-shi, Miyazaki, Japan.
Hiroko SugiokaGraduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, Japan.ORCID http://orcid.org/0000-0003-1883-4049
Atikul Haque FaraziDepartment of Geology and Mining, University of Barishal, Kornokathi, Barishal, Bangladesh.ORCID http://orcid.org/0000-0002-1822-1421
Shukei OhyanagiGraduate school of science, Kyoto University, Gokasho, Uji, Kyoto, Japan.
Yoshihiro ItoDisaster Prevention Research Institute, Kyoto University, Gokasho, Uji, Kyoto, Japan.ORCID http://orcid.org/0000-0001-9484-9539
Ryuta AraiResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.ORCID http://orcid.org/0000-0002-0030-0754
Eiichiro ArakiResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.
Gou FujieResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.ORCID http://orcid.org/0000-0002-6292-7034
Yasuyuki NakamuraResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.ORCID http://orcid.org/0000-0001-6750-2791
Takashi TonegawaResearch Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2-15 Natsushima, Yokosuka, Kanagawa, Japan.ORCID http://orcid.org/0000-0002-3173-4934
Ryosuke AzumaGraduate School of Science, Tohoku University, 6-6 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan.
Ryota HinoGraduate School of Science, Tohoku University, 6-6 Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, Japan.
Kimihiro MochizukiEarthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.ORCID http://orcid.org/0000-0001-6126-135X
Shunsuke TakemuraEarthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.ORCID http://orcid.org/0000-0002-7511-3443
Tomoaki YamadaEarthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.ORCID http://orcid.org/0000-0001-9295-8301
Masanao ShinoharaEarthquake Research Institute, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.ORCID http://orcid.org/0000-0003-1327-509X

Funding

MEXT | Japan Society for the Promotion of Science (JSPS) 24H01021MEXT | Japan Society for the Promotion of Science (JSPS) JP21H05202
6 · The paper itself

Abstract

Recent seismological and geodetic observations have revealed shallow slow earthquakes on subduction megathrusts, offering an opportunity to explore the factors controlling megathrust slip. Identifying these controlling factors helps constrain the potential updip extent of future megathrust ruptures. Here, we investigate the factors controlling the spatial extent of shallow slow earthquakes by integrating tremor locations with uncertainty estimates, detailed bathymetry data, and multichannel seismic data for the 2020-2021 slow earthquake sequence in the Kumano-nada region of the Nankai Trough. Tremor probability maps reveal that the updip, downdip, and lateral limits of tremor activity coincide with distinct structural boundaries. These include the kink or branching of the décollement, a deep-seated strike-slip fault, and the inner-outer wedge boundary. These structures likely act as geometrical or mechanical barriers, further influenced by variations in pore-fluid pressure and by the subducted Paleo-Zenisu ridge. The results indicate that megathrust geometry, material properties of the overriding prism, fluid distribution, and ridge subduction jointly govern the spatial extent of slow earthquakes, emphasizing the need to account for these factors in assessing the potential extent of future megathrust ruptures.

Identifiers

PMID41484122
PMCPMC12881577

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.