M 5.6 Earthquake Strikes 113 km ESE of Bitung, Indonesia

Source: USGS · Indonesia

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A magnitude 5.6 earthquake occurred 113 km ESE of Bitung, Indonesia, at a depth of 31 km.

What this USGS earthquake report tells you, and what most readers miss

This notice was issued by USGS on June 2, 2026 and geographically references Indonesia. Its severity classification of "medium" signals how the issuing agency weighs the risk of harm if no action is taken — "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to — Earthquakes — determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly USGS detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action — a single localized USGS earthquake report is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (earthquake, seismic, usgs, Indonesia) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

What Happened

A M 5.6 mww earthquake struck 113 km ESE of Bitung, Indonesia, on May 25, 2026, at 12:39 UTC. The event was recorded at coordinates 1.1115°N, 126.0911°E with a depth of 31.057 km. This depth classifies as intermediate (20-70 km).

Location Details

The epicenter was located 113 km east-southeast of Bitung, Indonesia, at latitude 1.1115 and longitude 126.0911. The intermediate depth places the event below the shallow crustal zone.

Impact Assessment

The USGS assigned a green alert level with a maximum MMI of 4.054. No tsunami advisory was issued (tsunami flag: 0). No felt reports were recorded in the available data.

What You Should Know

This was a moderate earthquake. Residents in the region should follow standard earthquake safety practices, including drop, cover, and hold on during shaking.

Source

Data from USGS: https://earthquake.usgs.gov/earthquakes/eventpage/us6000t04f

Original source: USGS Official Notice ↗

All Earthquakes →

Frequently Asked Questions

Common questions about this USGS earthquake report.

What is this USGS earthquake report about?
A magnitude 5.6 earthquake occurred 113 km ESE of Bitung, Indonesia, at a depth of 31 km.
Which agency issued this alert?
This alert was issued by USGS. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "medium" severity. Stay informed and follow agency guidance.
What area is affected?
This alert affects Indonesia. Check with USGS for the most current geographic scope.
Where can I find more Earthquakes updates?
Browse the full Earthquakes feed on Areazine at areazine.com/earthquakes/ for the latest updates from USGS and other agencies.