Bay of Bengal 4.5 magnitude earthquake jolts Visakhapatnam on 12 July
Synopsis
Key Takeaways
A 4.5 magnitude earthquake in the Bay of Bengal sent mild tremors rippling through Visakhapatnam and several adjoining districts of Andhra Pradesh in the early hours of Sunday, 12 July, around 5:05 am IST. No casualties, property damage, or any other loss have been reported, according to officials.
Where the Tremors Were Felt
Residents across multiple neighbourhoods in the coastal city were jolted awake, including Gajuwaka, Mangalapalem, Sagar Nagar, Pedda Waltair, Arilova, MVP Colony, and Appughar. Tremors were also reported in parts of Anakapalli, Vizianagaram, Kakinada, and Konaseema districts.
What the Agencies Said
The Indian National Centre for Ocean Information Services (INCOIS) confirmed that a mild earthquake measuring 4.5 on the Richter scale struck the Bay of Bengal in the early morning hours. The National Center for Seismology placed the epicentre approximately 225 km off the Kakinada coast, at latitude 16.805°N and longitude 84.381°E, at a depth of 10 km — classifying it as a shallow earthquake.
Expert Assessment
Seismologists described the event as a shallow structural adjustment and advised the public against undue alarm. Experts noted that the region is generally considered tectonically stable, and the mild intensity of the tremors was consistent with that assessment. No tsunami warning was issued.
Historical Context
This is not the first time Visakhapatnam and the north coastal Andhra belt have experienced seismic activity. In November last year, both Visakhapatnam and Alluri Sitharamaraju districts were shaken by a mild earthquake. Prior to that, a 3.7 magnitude quake struck Alluri Sitharamaraju district on 4 November 2015, with its epicentre at G. Madugula at a depth of 10 km, approximately 110 km from Visakhapatnam. That event triggered panic among residents but caused no casualties or structural damage.
Sunday's tremors follow a pattern of periodic, low-intensity seismic activity along Andhra Pradesh's coastline, reinforcing the need for continued monitoring even in areas classified as tectonically stable.