M4.0 Earthquake 9 km WNW of Solway, New Zealand — September 21, 2026
2026-09-21 09:23:42 UTC (1 day ago) · approx. 9:23 PM UTC+12 local
On September 21, 2026 at 09:23 UTC, a magnitude 4.0 shallow crustal earthquake struck 9 km WNW of Solway, New Zealand, at a depth of 26.0 km and coordinates -40.9249°, 175.5100°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 4 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
175.5100°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Solway, New Zealand?
The magnitude 4.0 earthquake that struck 9 km WNW of Solway, New Zealand on September 21, 2026 at 09:23 UTC had a depth of 26.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000tiwh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 21, 2026). M4.0 Earthquake 9 km WNW of Solway, New Zealand — September 21, 2026. Retrieved September 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tiwh/