Tajikistan: An earthquake of magnitude 4.3 struck Tajikistan on Saturday, a statement by the National Centre for Seismology (NCS) said.
The earthquake occurred at a shallow depth of 10km, making it susceptible to aftershocks.
Shallow earthquakes are generally more dangerous than deep earthquakes. This is because the seismic waves from shallow earthquakes have a shorter distance to travel to the surface, resulting in stronger ground shaking and potentially more damage to structures and greater casualties.
Earthquakes can occur anywhere between the Earth's surface and about 700 kilometres below the surface. For scientific purposes, this earthquake depth range of 0 - 700 km is divided into three zones: shallow, intermediate, and deep, as per USGS data.
Shallow earthquakes are between 0 and 70 km deep; intermediate earthquakes, 70 - 300 km deep; and deep earthquakes, 300 - 700 km deep. In general, the term "deep-focus earthquakes" is applied to earthquakes deeper than 70 km, the USGS states.
Tajikistan is a mountainous country with diverse topography and is especially vulnerable to climate hazards. It is prone to earthquakes, floods, droughts, avalanches, landslides and mudslides. The most susceptible areas are the glacier-dependent river basins supplying hydropower and water resources for irrigation, fragile mountain ecosystems and isolated forests with mountainous and riverine terrain, which makes them prone to landslides and land degradation.
As per the World Bank Climate Change Knowledge Portal, climate change is exacerbating Tajikistan's vulnerabilities, given that 30 per cent of glaciers are predicted to disappear by 2050. Tajikistan also remains one of the most isolated countries in the world - a situation made worse by landslides, debris flows and floods that can render bridges unsafe and roads impassable and, through time, weaken the flood defences which protect its most exposed communities.
In addition to this chronic challenge, Tajikistan's infrastructure is gradually deteriorating as a result of insufficient maintenance and repeated exposure to natural hazards.
As per the Global Facility for Disaster Reduction and Recovery, it is important to blend hazard information and climate change scenarios with local knowledge in the design of newly constructed and rehabilitated infrastructure assets to improve resilience over time.
This report was published from a syndicated wire feed. Apart from the headline, the EdexLive Desk has not edited the copy.
