Earthquake.now

M5.1 Earthquake near Tondano, Indonesia — 18 January 2026

A moderate earthquake of magnitude 5.1 was recorded near Tondano, Indonesia on , with an epicentre 91 km south-southeast of Tondano, at a focal depth of 72.8 km. It ranked as the 7th strongest of 58 earthquakes recorded in Indonesia in the preceding 30 days.

5.1 Moderate

Time (UTC): 2026-01-18 04:16:47

Time (your timezone): —

Magnitude: 5.1 (moderate)

Focal depth: 72.8 km (intermediate)

Epicentre: 0.6065, 125.3530

Location: 91 km SSE of Tondano, Indonesia

Country: Indonesia

USGS link to NOAA tsunami information: Not linked

Review status: Reviewed

Source: USGS event page

How strong was this earthquake?

Moderate earthquakes can damage poorly built or unreinforced structures near the epicentre, while well-engineered buildings typically escape serious harm. Shaking is often strong enough to wake sleeping residents over a wide area.

A magnitude 5.1 earthquake radiates roughly 674 tons of TNT equivalent in seismic energy.

The USGS assigns this earthquake a significance score of 400, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.

What the magnitude scale actually measures →

When it happened locally

That is about 12:38 local solar time at the epicentre, around midday.

This event was deeper than 71% of the 1,535 earthquakes recorded in Indonesia in our catalogue and stronger than 88% of them.

Where was the epicentre?

The epicentre was located at 0.6065, 125.3530 — 91 km south-southeast of Tondano. The closest other recorded event was a magnitude 5.1 earthquake 53 km east-southeast of here on 27 May 2026.

The nearest other settlements in our records are Bitung (81 km east-southeast), Modisi (107 km south), Tomohon (121 km west-northwest) and Laikit, Laikit II (Dimembe) (136 km north-northwest).

Why the 73 km depth matters

At 73 km this was an intermediate-depth earthquake. Energy from events at this depth spreads out before it reaches the surface, which usually means weaker shaking near the epicentre than a shallow quake of the same magnitude, but shaking felt across a wider area.

This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, an event this size can be felt widely and may cause minor local damage. Its intermediate depth normally reduces peak shaking near the epicentre compared with a shallow event of the same magnitude.

Read more on how focal depth changes what you feel →

What does the tsunami information flag mean?

The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M5.1 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.

How earthquakes generate tsunamis, and what the alert levels mean →

Aftershocks and local seismic history

1 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 4.6.

269 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 7.8 event near Ternate on 01 April 2026. This M5.1 event released about 11,220 times less energy than that event.

39 earthquakes have been recorded within 100 km of this epicentre in the past year, 2 of them in the past 30 days.

How long aftershock sequences last, and how large they get →

Where this event sits in the record

This earthquake is part of the January 2026 worldwide record, and of earthquakes in Indonesia during January 2026. Browse the full monthly archive to compare periods.

Nearest recorded earthquakes to this epicentre

Other recent earthquakes in Indonesia

All recorded earthquakes in Indonesia →

Other magnitude 5 earthquakes worldwide

All magnitude 5 earthquakes →

Questions about this earthquake

How strong was the earthquake near Tondano?

It measured magnitude 5.1 — a moderate earthquake. A magnitude 5.1 earthquake radiates roughly 674 tons of TNT equivalent in seismic energy.

How deep was the earthquake near Tondano?

The focus was 73 km below the surface, which counts as intermediate.

Was the Tondano earthquake felt at the surface?

At magnitude 5.1 and a focal depth of 73 km, the depth spreads the energy out, so shaking is weaker overhead but reaches further.

When did the earthquake near Tondano happen?

18 January 2026 at 04:16 UTC.

Was there a tsunami?

No. The USGS record carries no tsunami-information link for this event.

Have there been aftershocks?

1 further earthquakes have been recorded within about 150 km of the epicentre in the seven days after this event, the largest of them magnitude 4.6.

How often do earthquakes happen near Tondano?

269 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 7.8 event near Ternate on 01 April 2026. This M5.1 event released about 11,220 times less energy than that event.