<p>The massive shockwaves due to the eruption of Hunga-Tonga-Hunga-Ha'apai in Tonga were also felt across India, meteorologists said on Monday.</p>.<p>"Every weather station across India recorded the spike. It was expected and it was noticed," said DS Pai, who heads India Meteorological Department's (IMD) climate research and services in Pune.</p>.<p>For instance, IMD Goa said between 8.45 pm and 9 pm on January 15, the automatic weather station (AWS) at Panaji recorded a rise in pressure by 1.3 millibars (written as 1.3hpa), supposedly because of the shockwaves .</p>.<p>IMD Goa tweeted a barometer graph that showed a clear spike along the curve that regularly showed the regular diurnal recordings in wave form.</p>.<p><strong>Also Read: <a href="https://www.deccanherald.com/science-and-environment/why-the-volcanic-eruption-in-tonga-was-so-violent-and-what-to-expect-next-1071554.html" target="_blank">Why the volcanic eruption in Tonga was so violent, and what to expect next</a></strong></p>.<p>In fact, almost 12 hours after that, i.e., on Sunday morning, an amateur weather enthusiast from Goa, Atul Naik, posted on Twitter another graph that showed the second peak too.</p>.<p>The violent volcanic eruption on January 14 continued for over 12 hours and it again erupted for eight minutes the following day sending massive plumes of ash into the sky.</p>.<p>Tsunami waves hit Tonga on the evening of January 15.</p>.<p>The tsunami followed a series of violent eruptions from submarine volcano Hunga Tonga Hunga Ha'apai, 65 km north of the country's main island Tongatapu.</p>.<p>Tsunami warnings were issued in Australia, New Zealand, Japan and the US.</p>.<p><strong>Watch the latest DH Videos here:</strong></p>
<p>The massive shockwaves due to the eruption of Hunga-Tonga-Hunga-Ha'apai in Tonga were also felt across India, meteorologists said on Monday.</p>.<p>"Every weather station across India recorded the spike. It was expected and it was noticed," said DS Pai, who heads India Meteorological Department's (IMD) climate research and services in Pune.</p>.<p>For instance, IMD Goa said between 8.45 pm and 9 pm on January 15, the automatic weather station (AWS) at Panaji recorded a rise in pressure by 1.3 millibars (written as 1.3hpa), supposedly because of the shockwaves .</p>.<p>IMD Goa tweeted a barometer graph that showed a clear spike along the curve that regularly showed the regular diurnal recordings in wave form.</p>.<p><strong>Also Read: <a href="https://www.deccanherald.com/science-and-environment/why-the-volcanic-eruption-in-tonga-was-so-violent-and-what-to-expect-next-1071554.html" target="_blank">Why the volcanic eruption in Tonga was so violent, and what to expect next</a></strong></p>.<p>In fact, almost 12 hours after that, i.e., on Sunday morning, an amateur weather enthusiast from Goa, Atul Naik, posted on Twitter another graph that showed the second peak too.</p>.<p>The violent volcanic eruption on January 14 continued for over 12 hours and it again erupted for eight minutes the following day sending massive plumes of ash into the sky.</p>.<p>Tsunami waves hit Tonga on the evening of January 15.</p>.<p>The tsunami followed a series of violent eruptions from submarine volcano Hunga Tonga Hunga Ha'apai, 65 km north of the country's main island Tongatapu.</p>.<p>Tsunami warnings were issued in Australia, New Zealand, Japan and the US.</p>.<p><strong>Watch the latest DH Videos here:</strong></p>