DWIEP

Geography

Island code

INKA017

Name of the island

Unnamed Rock

Island note

-

Type of island

Oceanic Island

State / UT

Karnataka State

Location

Arabian Sea (The island is located near Kudle beach at a distance of 0.950 km)

Geographical coordinates

14°31'1.20"N
74°19'8.04"E

Area

0.001 sq.km

Area range

Less than 2 sq.km

Climate

The island is located near Uttara Kannada district. The climate of Uttara Kannada district is tropical. The district largely falls under the hilly agroclimatic zone except for the western parts of Karwar, Ankola, Kumta, Honnavar and Bhatkal taluks, which are coastal agroclimatical The average annual temperature is 27.2 °C, with temperatures rising from January and peaking in May, at around 30 °C. The climate is classified as Am according to the Koppen-Geiger climate classification system There is significant rainfall during most months, with the short dry season hardly effecting the overall climate. Precipitation averages about 2750 mm, largely occurring over nearly 103 rainy days. The driest month is January and the warmest is April, with October to December being the post monsoon season (Source: climate-data.org)

Terrain

Rocky

Elevation / Altitude

Around 1.5 m (Data extracted from Google earth)

Soil type

The soil of Uttara Kannada district is mostly lateritic type, and is distributed in the pediplain area. It is characterised by high iron and aluminium content. It is mostly red in colour, though yellow loamy, pale to bright red colours are also seen. The major soil types are (i) hilly soil (ii) lateritic (iii) loamy and (iv) semi-black cotton (Source: CGWB Report, 2006)

Fresh water sources

Major Water Bearing Formations: (i) Shallow aquifers - alluvium along the stream courses, along coast, creeks, weathered zones of schists, metasedimentaries and metavolcanics occurring between the depths of 3 to 20 mbgl (ii) Deeper aquifers of fractured and jointed Schists, gneisses and metavolacanics and meta sedimentaries up to 200 mbgl Net annual ground water availability: 70765 (ham)

Hydrology

The water bearing formations are weathered & fractured Gneiss, Schist & Granite and alluvium. The water level during pre-monsoon is 1.85 mbgl to 15.17 mbgl & during post-monsoon is 1.65 mbgl to 9.40 mbgl. Nitrate occurs more than permissible limit which is around 140ppm. The water type is Ca - Mg bicarbonate to Na Chloride (Source: CGWB Report, 2006)

Demography

Habitation

Uninhabited

Population

Nil

Language

Not applicable

Religion

Not applicable

Ethnic groups

Not applicable

Traditional knowledge

Not applicable

Shoreline Characteristics

Coastline / Shoreline

0.67 km (Data extracted from Google earth)

Tidal amplitude

Average spring tide is 1.58 m neap tide 0.72 m at Karwar Port (Sanil Kumar et al., 2012)

Bathymetry

1.5 m (Data extracted from NHO chart)

Infrastructure and Communication

Infrastructure

No

Communication

No

Transportation

Transport

This island is located near 0.250 km from Om beach, Uttar Kannada district of Karnataka and can be reached by boats

Nearest Port / Jetty / Harbour

Belekeri Fishing Harbour, Karwar

Distance to nearest Port / Jetty / Harbour

25.51 km from Belekeri Fishing Harbour

Shortest distance from mainland

Om beach is located in the Uttra Kannada taluk which is the shortest distance of 0.250 km from this rocky island

Nearest Airport

100 km from Dabolim International Airport, Goa 267.80 km from Mangalore International Airport

Activities

Agriculture

No

Commercial activity

No

Industries

No

Tourism

Tourist places

No

Tourism activity

No

Biodiversity and Conservation

Flora

No information available

Fauna

No information available

Medicinal plants

No information available

Type of forest

No information available

Endangered species

Littoral and reserve forest

Flagship species

No information available

Keystone species

No information available

Conservation status
(Protected / Unprotected with ESA /
Unprotected without ESA)

Unprotected ESA

Sanctuary

No information available

Ecological Sensitive Areas (ESAs)

No

Hazards

Natural hazards

Cyclone and Flood

Seismic sensitivity

As per the Seismic Zone Map of India, this region is assigned under the Moderate Damage Risk Zone III (MSK) VII (Source: NDMA, 2016)

High Flood Line (HFL) / Tsunami

The rock comes under the moderate risk zone (V_b=39m/s) for Wind and Cyclone Vulnerability map of India (Source: NDMA, 2016) As per the Flood hazard map of India, the probable maximum surge height of this region is 3 to 4 m (Source: NDMA, 2016)

Environmental Issues

Environment-current issues

Soil erosion, Pollution discharge (domestic waste, industrial discharge), and wave overtopping are the Uttra Kannada coastal areas (Source: http://cmiskarnataka.in/kodibengre.html)

Data Web on Island Environment and Protection (DWIEP)

Coastal and Oceanic Island Database of India

Unnamed Rock