Real-time coverage of earthquake event — 49 km E of Noda, Japan — Pandita Data.
🌍 OPEN LIVE 3D EARTHQUAKE MAPA magnitude 6.0 earthquake struck 49 kilometres east of Noda, Japan at 12:08 UTC on July 1, 2026, at 43.6 kilometres depth. The Japan Meteorological Agency and USGS confirmed no tsunami warning, with a PAGER alert level of GREEN indicating minimal expected damage. Nine people reported feeling the moderate shaking across the Ibaraki Prefecture region.
The epicentre coordinates (40.164°N, 142.393°E) place this event in the Pacific Plate subduction zone, where the Pacific and North American plates converge. At 43.6 kilometres depth, this is classified as an intermediate-depth slab earthquake—rupturing within the subducting Pacific Plate rather than at the trench or shallow forearc. Such events release enormous energy vertically through rigid oceanic crust, producing localised but intense ground motion.
Eastern Japan sits atop the Japan Trench subduction zone, where the Pacific Plate descends beneath the Eurasian Plate at ~8.5 cm/year. This collision generates three distinct earthquake types: shallow megathrust events (M8+, tsunami risk), forearc crustal ruptures, and slab events like this one. Intermediate-depth slab earthquakes occur 40–100 km down, where the subducting plate remains cold and brittle. The Noda region experiences frequent seismicity; a M5.8 event struck 18 km away in March 2011 during the Tōhoku foreshock sequence.
At magnitude 6.0, this event released approximately 2.0 × 1018 joules of energy—equivalent to 500 kilotons TNT. The 43.6 km depth acts as a shock absorber; ground motion decays rapidly with distance because energy dissipates through the rigid slab before reaching population centres. Peak ground acceleration likely reached 0.15–0.25 g near the epicentre but dropped below 0.05 g in Noda town 49 km away—below the threshold for structural damage in modern Japanese buildings.
Intermediate depth (40–70 km): Energy radiates upward through cold, rigid crust. Less tsunami risk (no ocean floor displacement). Vertical shaking dominant. Damage confined to epicentre zone.
Shallow thrust (<30 km): Rupture extends to trench. Sea floor uplift triggers tsunami. Wider damage radius. Example: 2011 Tōhoku M9.0 killed 20,000.
Noda city (population 125,000) is 49 km away—far enough to escape significant shaking. The epicentre lies offshore in deeper water, where slab rupture does not displace the ocean surface. Ibaraki Prefecture's seismic infrastructure—rigid building codes, moment-resisting frames, dampers—is engineered to withstand M6 events routinely. No power outages, infrastructure disruption, or casualties were reported. The PAGER GREEN status confirms expected impact below economic threshold.
This event is consistent with ongoing Pacific Plate subduction. Japan experiences ~100 magnitude 6+ earthquakes annually; most slab events like this dissipate energy safely within the plate interior.
Monitor the Pandita Data real-time earthquake simulator to visualize this event's focal mechanism and stress distribution across the Pacific Plate slab. Understanding subduction geometry helps communities prepare for future seismic sequences.
FAQ::[ { "q": "What caused this earthquake?", "a": "Rupture within the subducting Pacific Plate at 43.6 km depth. Stress accumulated along the slab as it descends beneath Japan at 8.5 cm/year." }, { "q": "Is a tsunami risk associated with this event?", "a": "No. Intermediate-depth slab earthquakes rupture within the plate interior, not at the ocean floor. No water displacement, no tsunami generated." }, { "q": "What should people near Noda do right now?