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GeoHazards, Volume 2, Issue 4

2021 December - 10 articles

Cover Story: This paper evaluated the relationship between sea-level change and the severity of impacts on major habitat-forming seaweeds that sustain life on rocky shores. The vertical displacement of intertidal areas uplifted by the 7.8 Mw Kaikōura earthquake was assessed using LiDAR differencing analyses from the closest terrestrial surfaces coupled with controls on horizontal land movement and tilt. Seaweed cover measurements in equivalent intertidal zones found severe (>80%) losses at 9 of 10 sites and included the lowest uplift values (0.6 m). The results indicate major impacts beyond a functional threshold of one-quarter of the tidal range and considerable lag times in ecosystem recovery due to interactions with other stressors in the reassembly phase. View this paper
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Articles (10)

  • Article
  • Open Access
2 Citations
3,940 Views
12 Pages

Integrated Assessment of Drought Impacts on Rural Areas: The Case of the Chapada Diamantina Region in Brazil

  • Rodrigo Rudge Ramos Ribeiro,
  • Samia Nascimento Sulaiman,
  • Stefan Sieber,
  • Miguel Angel Trejo-Rangel and
  • Juliana Fionda Campos

20 December 2021

Drought is one of the most significant hazards that farmers face in rural areas. This study aims to examine an integrated assessment of the drought impacts in rural territories, considering the social perceptions related to the effects of natural haz...

  • Technical Note
  • Open Access
5 Citations
2,943 Views
12 Pages

Effect of Base Conditions in One-Dimensional Numerical Simulation of Seismic Site Response: A Technical Note for Best Practice

  • Gaetano Falcone,
  • Giuseppe Naso,
  • Federico Mori,
  • Amerigo Mendicelli,
  • Gianluca Acunzo,
  • Edoardo Peronace and
  • Massimiliano Moscatelli

18 December 2021

The effects induced by the choice of numerical base conditions for evaluating local seismic response are investigated in this technical note, aiming to provide guidelines for professional applications. A numerical modelling of the seismic site respon...

  • Feature Paper
  • Article
  • Open Access
4 Citations
5,192 Views
15 Pages

Morphotectonic Structures along the Southwestern Margin of Lesvos Island, and Their Interrelation with the Southern Strand of the North Anatolian Fault, Aegean Sea, Greece

  • Paraskevi Nomikou,
  • Dimitris Evangelidis,
  • Dimitrios Papanikolaou,
  • Danai Lampridou,
  • Dimitris Litsas,
  • Yannis Tsaparas,
  • Ilias Koliopanos and
  • Maria Petroulia

14 December 2021

A hydrographic survey of the southwestern coastal margin of Lesvos Island (Greece) was conducted by the Naftilos vessel of the Hellenic Hydrographic Service. The results have been included in a bathymetric map and morphological slope map of the area....

  • Feature Paper
  • Article
  • Open Access
5 Citations
3,647 Views
17 Pages

4 December 2021

Surface fault displacement due to an earthquake affects buildings and infrastructure in the near-fault area significantly. Although approaches for probabilistic fault displacement hazard analysis have been developed and applied in practice, there are...

  • Feature Paper
  • Article
  • Open Access
9 Citations
4,574 Views
15 Pages

The Relevance of Geotechnical-Unit Characterization for Landslide-Susceptibility Mapping with SHALSTAB

  • Carla Moreira Melo,
  • Masato Kobiyama,
  • Gean Paulo Michel and
  • Mariana Madruga de Brito

30 November 2021

Given the increasing occurrence of landslides worldwide, the improvement of predictive models for landslide mapping is needed. Despite the influence of geotechnical parameters on SHALSTAB model outputs, there is a lack of research on models’ pe...

  • Article
  • Open Access
16 Citations
5,151 Views
17 Pages

Flash Flood Susceptibility Evaluation in Human-Affected Areas Using Geomorphological Methods—The Case of 9 August 2020, Euboea, Greece. A GIS-Based Approach

  • Anna Karkani,
  • Niki Evelpidou,
  • Maria Tzouxanioti,
  • Alexandros Petropoulos,
  • Nicoletta Santangelo,
  • Hampik Maroukian,
  • Evangelos Spyrou and
  • Lida Lakidi

19 November 2021

Flash floods occur almost exclusively in small basins, and they are common in small Mediterranean catchments. They pose one of the most common natural disasters, as well as one of the most devastating. Such was the case of the recent flood in Euboea...

  • Article
  • Open Access
3 Citations
3,618 Views
14 Pages

18 November 2021

Increasing extreme climate events and cyclonic activities provide clear evidence that the Southern African Development Community (SADC) region is a hotspot for climate change-driven natural disasters which critically disrupt agricultural production c...

  • Feature Paper
  • Article
  • Open Access
1 Citations
4,154 Views
20 Pages

Dynamic Identification Tests of 20th Century Historic Masonry Buildings in Japan

  • Yohei Endo,
  • Yuta Waki,
  • Yasushi Niitsu and
  • Toshikazu Hanazato

31 October 2021

This paper discussed the application of health monitoring systems to 20th-century historic buildings. Natural disasters are major threats to monuments. They are often seismically vulnerable and require interventions. However, taking into account thei...

  • Article
  • Open Access
19 Citations
7,432 Views
11 Pages

29 October 2021

This study provides a decade-long link between summer heatstroke incidence and certain heat stress indices in 47 prefectures of Japan. The results for each prefecture were determined from the age-adjusted heatstroke incidence rate (TRadj) with heatst...

  • Article
  • Open Access
14 Citations
4,502 Views
19 Pages

Threshold Effects of Relative Sea-Level Change in Intertidal Ecosystems: Empirical Evidence from Earthquake-Induced Uplift on a Rocky Coast

  • Shane Orchard,
  • Hallie S. Fischman,
  • Shawn Gerrity,
  • Tommaso Alestra,
  • Robyn Dunmore and
  • David R. Schiel

29 September 2021

Widespread mortality of intertidal biota was observed following the 7.8 Mw Kaikōura earthquake in November 2016. To understand drivers of change and recovery in nearshore ecosystems, we quantified the variation in relative sea-level changes caused by...

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GeoHazards - ISSN 2624-795X