Archive · 15 Aug 2026
Magnitude 7.7 Earthquake Strikes Off Indonesia Coast, Tsunami Warning Issued
The earth sometimes shakes, and that shaking is called an earthquake.
A very big earthquake happened near the country of Indonesia.
It was so strong that scientists measured it as 7.7 on their special machine, which is very powerful.
The shaking happened very early in the morning on Saturday.
It started deep under the ocean, about 35 kilometers down.
Earthquakes that start in the ocean can make giant waves called tsunamis.
Because of this, scientists in Indonesia warned people to be careful.
The shaking did not stop right away—there were at least three smaller shakes called aftershocks.
Scientists keep watching to make sure everyone stays safe.
A powerful magnitude 7.7 earthquake struck off the coast of Indonesia early Saturday.
The European-Mediterranean Seismological Centre (EMSC) recorded the quake at around 4:58 a.m. local time (2158 GMT).
The earthquake occurred at a depth of 35 km (21.75 miles).
Indonesia's geophysics agency issued an early tsunami warning following the quake.
The main quake was followed by at least three aftershocks.
- Who
- Indonesia's geophysics agency, which issued the tsunami warning, and the European-Mediterranean Seismological Centre (EMSC), which recorded the quake.
- What
- A magnitude 7.7 earthquake struck off Indonesia's coast, followed by at least three aftershocks and triggering an early tsunami warning.
- When
- Early Saturday, Aug 15, at around 4:58 a.m. local time (2158 GMT).
- Where
- Off the coast of Indonesia.
- Why
- Not explicitly stated in the articles.
- Magnitude
- 7.7
- Depth
- 35 km (21.75 miles)
- Time
- 4:58 a.m. local time (2158 GMT), Saturday, Aug 15
- Location
- Off the coast of Indonesia
- Aftershocks
- At least three
- Tsunami Warning
- Issued by Indonesia's geophysics agency
- Monitoring Body
- European-Mediterranean Seismological Centre (EMSC)