- Landslides at Jorabat and Kharghuli areas of Guwahati , Assam (24th and 31st August 2018)
In Guwahati, Assam, heavy rainfall on 24th August 2018 caused landslides at Hastinapur and Sankardev Nagar in Jorabat area with 03 casualties and on 31st August 2018 a landslide in Kharguli area damaged infrastructures
- Landslide incidence near transport Nagar, Jaipur, Rajasthan (19 August, 2018)
Rock slide/fall took place at about 15:30 hours due to heavy spell of rainfall, in Amagarh area (200-250 m south east of Jaipur-Delhi National Highway-8. This landslide caused death of one person, injuring six residents and damaged several houses located in the foothill zone of Amagarh Hill). The rain water percolation along the bedding joint/plane (abandoned quarry at the site daylighted the planes in the slope surface) had reduced the shear strength of strata along slope which resulted in rock fall/slide.
- Landslides in Kodagu district, Karnataka (15th to 17th August 2018)
The unprecedented heavy rainfall during 2018 in Kodagu district with 32% more than the average annual rainfall in last 20 years caused numerous landslides. The landslides caused nu loss of life, damaging property, infrastructure and communication lines. The communication line along Shiradi and Sampaje Roads connecting Mangalore with Bangalore was cut off. The note contains the study of 105 landslides in the region. All the landslides are triggerd by heavy and the major causes are modification of the natural slopes, blockage of natural drainage, water tanks / ponds in the slope and flash flood due to temporary dam formed by blockage of streams.
- Landslide Incidences on NH-22, Solan district, Himachal Pradesh (13 and 14 August, 2018).
Heavy rainfall triggered the initiation of new landslides and reactivated existing ones along NH-22 in Solan district, Himachal Pradesh blocking and disrupting the traffic along NH22.
- Landslide incidence at Upper Syari, Deorali-Gangtok, East district, Sikkim (10 August, 2018).
A large crack was reported on 09.08.2018 on Upper Syari road, near Deorali, Gangtok, East District, Sikkim. The landslide located (27°18’57”N and 88°36’24”E) in the vicinity of the residential complex of Auditor General (AG), Sikkim was initiated on 10.08.2018.
- Landslide incidence at Lokchao village, Tengnoupal District, Manipur (02 August 2018)
Excessive rainfall triggered the Lokchao rockslide (24°19´31.6´´N, 94°13´57.3´´E) occurred along Imphal-Moreh Road [NH-102] on 2nd August, 2018 blocking the road. The main causes of the slide includes extensive slope cutting exposing 18m steep cut slope.
- Landslide incidence near Kabi, border between East and North Disitrict, Sikkim (2nd August 2018)
On 2nd August 2018 incessant rainfall reactivated a landslide that occurred in mid-July along the state highway about 22 km from Gangtok on Gangtok-Mangan road via Phoodong causing disruption of traffic. The landslide is a planner rock slide blocking the road for a week.
- Subsidence between unit location of 1st BN Sikkim Scouts and the road stretch (JNM axis) ahead of MS-8, Gangtok, East district, Sikkim (August 2018)
During August 2018 subsidence occurred around “paleo-landslide near 1st BN Sikkim Scouts and the road stretch (JNM axis) ahead of MS-8 with development of 10-20m long cracks on roads, footpaths, culverts and on the floor of residential houses along with ground settlement.
- Landslide incidence at Kalikhola, Kangpokpi District, Manipur ( 23 July 2018)
Heavy rainfall triggered reactivation of Kalikhola landslide at Kangpokpi District, Manipur. A second landslide also was initiated in its vicinity. The debris from these adjacent landslides damaged a village foot track and blocked a nala (Kali Lok) resulting in formation of a small lake along the river.
- Landslide incidence at Kikruma, Phek district, Nagaland (July, 2018)
Heavy rainfall for one week during the last week of July, 2018 led to rising water level in the Sidzu river as well as saturation of the weak slope forming for the area around Kikruma village, leading to the initiation of a conspicuous debris slide. The landslide debris blocked the Sidzu river and led to formation of an artificial dam causing imminent threat to the habitations downstream.
- Landslide incidence at New Heaven-Lamlang Gate section of Imphal-Ukhrul road, Ukhrul district, Manipur (July 2018)
The landslide along New Heaven-Lamlang Gate section of Old Imphal-Ukhrul road (24°59’34.4”N, 94°13’50.1”E) was blocked during the first week of July, 2018 (as per local residents) hindering traffic.
- Landslide incidence along Lumding–Badarpur Railway Line, Dima Hasao district, Assam (14 June, 2018)
Incessant rainfall from 12th to 14th June, 2018 triggered landslides blocking the Lumding–Badarpur railway service in Dima Hasao district of Assam. A high 382 mm of rainfall was recorded on 14.06.2018 which triggered four landslides between 2:00 PM and 3:00 PM along the Lumding–Badarpur Railway Line. The Bandarkhal landslide, located between Bridge No. 305 and Tunnel No. 19 led to the suspension of railway service in the Lumding–Badarpur line for 03 consecutive days.
- Landslide incidence at New Salem, New Kanan and Neigailong villages of Tamenglong District, Manipur (11th July 2018)
Heavy rainfall triggered landslides at New Salem, New Kanan and Neigailong villages of Tamenglong district on 11th July 2018 with reported loss of nine lives (two in New Salem, two in New Kanan and five in Neigailong village). At New salem, construction of house at the foot of unconsolidated dumped material and failure of the same during incessant rainfall was found to be the cause of death. At New Kanan, construction of house in proximity of a nala exposing a very high vertical cut face is responsible for failure. The landslide at Neigailong village is the reactivation of an old landslide zone. Dumping of excavated loose soil within the old landslide zone during road construction coupled with the incessant heavy rainfall aggravated the slope instability.
- Landslide incidence in Idukki district, Kerala (June & July, 2018)
During the initial phase of onset of south-west monsoons, ten (10) landslides (on 9th June, 2018) were reported in different parts of Idukki district, Kerala which has damaged buildings, roads, agricultural land and disruption to traffic. Majority of the landslides occurred in the fringe slopes of rugged hills bordering the Munnar plateau of Western Ghats.
- Landslide incidence south of Leiting village along NH-102A Ukhrul district, Manipur (14th June 2018)
On 14th June, 2018, heavy rainfall triggered landslide at about 1.5 km south of Leiting Village damaging and blocking traffic along NH-102A.
Landslide incidence on NH-37 at 5 km SSW of Kotlen, Noney district, Manipur (12th June 2018)
On 12th June 2018, heavy rainfall triggered a massive landslide along NH-37 about 5 km SSW of Kotlen (Lat: 24°47´28.7″N and Long: 93°44′8.4″E) and 12 nos of medium to small size landslides along the Highway.
- Landslides along Madikeri-Makutta and Madikeri–Koyanad-Sulya road sections, Kodugu district, Karnataka (9 & 10 June, 2018)
Heavy rainfall similar to cloud burst during the night of 9th and 10th June, 2018 caused many landslides in Madikeri district. A total 08 nos. of landslide sites along Madikeri-Makutta and Madikeri–Koyanad-Sulya road sections inflicted damage to road and blocked traffic.
- Landslide incidence on NH-37, near Kotlen village, Noney district, Manipur (6th June 2018)
The landslide located at Lat. 24°46'54.10"N and Long. 93°46'33.80"E occurred on 6th June 2018 and caused reported blockage of the Imphal-Jiribam Road. The landslide is a reactivation of an old landslide that has occurred due to antecedent heavy rainfall.
Landslide incidence at Lunglawn, Lunglei Town, Lunglei district, Mizoram (4th June 2018)
The Lunglawn landslide which occurred at 18:30 hrs on 4th June, 2018 led to loss of 10 lives. The landslide which got triggered by reported antecedent heavy rainfall received during the whole day destroyed and buried one pucca house along with its occupants. Immediate rescue operation by neighbors and one local NGO led to timely rescue of 4 persons out of the 14 members of two families residing in the buried house, while the other 10 could not be saved.
- Landslide incidences in Kozhikode, Wayanad and Kannur districts, Kerela (June, 2018)
During heavy downpour in the second week of June 2018, thirty six (36) landslide incidences were reported in various parts of northern Kerala (27 in Kozhikode, 8 in Wayanad and 1 in Kannur districts) with huge loss to lives and property. Kozhikode district is the worst affected among these three districts with respect to the number of landslide incidences, casualties and property loss. The Karinchola mala landslide in Kattipara Panchayat, Kozhikode District is the most devastating with 14 casualties besides huge property loss.
- Landslide incidences in Malappuam and Palakkad districts, Kerela (June, 2018)
Heavy rainfall during south-west monsoon caused several landslides in different parts Malappuram and Palakkad district causing damages to property and infrastructure. In total thirteen (13) landslide incidences from Malappuram district [9nos] and Palakkad districts [4nos] were reported.
Landslide incidence on Tuensang-Chessore-Shamatore road, Tuensang District, Nagaland (21st May 2018)
The site is located at Lat. 26°6'44.80"N and Long. 94°45'24.30"E falling in the SOI toposheet no. 83 J/16.
- Landslide incidence in Hezamara and Bel Bari blocks of West Tripura district and Ompi block of Gomati district, Tripura (18th May, 2018)
Subsequent to incessant heavy rainfall on 18th May 2018, a number of landslides were reported in different parts of Tripura resulting in the loss of six (06) lives and injuring several people in three different incidences in Hezamara and Bel Bari blocks of West Tripura district and in Ompi block of Gomati district. Post-disaster investigation of eight (08) landslide incidences in the two affected districts was carried out.
Landslide incidence at Sonapur, East Jaintia Hills District, Meghalaya (7th May 2018 )
On 7th May 2018 (01:00hrs), heavy rainfall triggered few landslides along NH-6 connecting Shillong with Barak Valley of Assam, Mizoram and Tripura which blocked 10m stretch of the important road corridor for more than 12 hours.
Landslide incidence along NH-37, near Makru-bridge over Makru river, Tamenglong District, Manipur (3rd May 2018)
On 3rd May 2018 rainfall triggered landslide along NH-37, near Makru bridge along Imphal-Jiribam Highway damaging an approx. 205 m length of road.
Landslide incidence at Kuwari village, Bageswar District, Uttarakhand (10th March 2018)
On 10th March 2018, heavy rainfall triggered massive rock slide (79⁰48ꞌ0.82ꞌꞌ, 30⁰04ꞌ58.24ꞌꞌ) on the hills slope NW of Kuwari village affecting 400 persons living in 106 houses located at the toe of the slide. Initially, slide occurred as huge rock slabs moved along slope direction and developed successive scars. The planar failure observed along the foliation joint/plane which strikes NW-SE dipping 45⁰ towards NE.