Containers of capsized ship drift to Kerala coast: What we know about the oil spill risk, and preparedness to contain it
MSC ELSA 3, the Liberian-flagged vessel, en route to Kochi Port from Vizhinjam near Thiruvananthapuram, started tilting due to the rough sea conditions, 38 nautical miles off the coast of Kochi on Saturday. By next day morning, multiple containers fell into the water and began to sink. According to Indian Coast Guard (ICG), the vessel capsized rapidly in the early hours of Sunday 'due to flooding in one of the holds', and was at a risk of spilling oil. 'All 24 crew members of Liberian-flagged container vessel MSC ELSA 3 were rescued safely, 21 by Indian Coast Guard and 3 by Indian Navy ship, Sujata, after the vessel sank off Kochi this morning,' the Coast Guard said in a post on X on Sunday.
The Kerala State Disaster Management Authority has issued an alert to the public to keep at least 200 metres away from objects that may drift towards the coast. The state government has sounded an alert along the coast, mainly in central and southern Kerala, where the containers from the sunken ship were likely to reach in heavy wind and currents. Besides, there has been an alert against the oil slick from ship, which could reach anywhere along the Kerala coast, the government said.
The Coast Guard has said the sunken ship was carrying 640 containers, including 13 containing 'hazardous cargo' and 12 with calcium carbide. Additionally, the ship had 84.44 metric tonnes of diesel and 367.1 metric tonnes of furnace oil in its tanks. However, the Indian National Centre for Ocean Information and Services (INCOIS) has warned that if spillage does occur, at least two coastal districts in southern Kerala could face contamination within 36 to 48 hours.
If the oil spill, the areas that are at potential risk of contamination are Alappuzha, Ambalapuzha, Arattupuzha and Karunagappally. 'These coastal zones are at risk of contamination and should be given prompt attention to minimise potential environmental impact,' said INCOIS.
INCOIS said it is closely monitoring the situation and remains in coordination with relevant authorities, providing vital ocean forecast information and advisory services to support ongoing search, rescue, and environmental response operations. Soon after the tilting of the cargo ship was reported, INCOIS activated its Search and Rescue Aid Tool (SARAT) to assist in locating containers or drifting objects, it said. Additionally, 'oil spill trajectory advisory' simulations were run to forecast the potential spread and movement of any oil discharge, aiding mitigation and cleanup planning, it said.
The Coast Guard said it has activated comprehensive pollution response preparedness and is coordinating closely with the state administration to address all possible scenarios. The Coast Guard ship, Saksham, is engaged in oil spill response. A Coast Guard Dornier aircraft is also being launched in 'PR configuration for mitigating oil spill'. In the context of an oil spill response, 'PR configuration' typically refers to the use of the 'co-polarisation ratio' (PR) method to assess the oil-water mixture ratio in a spill — crucial for effective emergency treatment and cleanup efforts.
The state government has asked the Factories and Boilers Department to make ready two Rapid Response Teams (RRTs) each in southern and central Kerala districts, and one each in the northern districts. Besides, in the event of oil slick reaching the shore, the state pollution control board was directed to make ready two RRTs each in the southern and central coastal districts and one each in the northern districts.
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