2.6

M2.6 Earthquake 13 km E of Christchurch, New Zealand — February 18, 2021

2021-02-18 20:33:54 UTC (2021-02-18) · approx. 8:33 AM UTC+12 local

MagnitudeM2.6(ml)
Time20:33 UTC≈ 8:33 AM UTC+12
Depth16.5 kmshallow crustal
Coordinates-43.515°, 172.793°
Felt by8DYFI responses
Status✓ Reviewed by USGS

On February 18, 2021 at 20:33 UTC, a magnitude 2.6 shallow crustal earthquake struck 13 km E of Christchurch, New Zealand, at a depth of 16.5 km and coordinates -43.5148°, 172.7935°.

Physical scale: An earthquake of magnitude 2.6 releases seismic energy equivalent to roughly 120 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 37 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -43.51°, 172.79°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.6 earthquake near 13 km E of Christchurch, New Zealand

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.6 ml
Depth
16.5 km
shallow crustal
Location
-43.5148°N
172.7935°E
Felt Reports
8
DYFI responses
Community Intensity
4.3
CDI from reports

Technical Information

Event ID
us6000dir2
Event Type
earthquake
Status
✓ Reviewed
Significance
107
Azimuthal Gap
165.0°
Min Station Distance
0.216°
RMS Residual
0.40 sec
Last Updated
2021-04-23 21:04:56 UTC

Common Questions

How strong was the magnitude 2.6 earthquake near Christchurch, New Zealand?

The magnitude 2.6 earthquake that struck 13 km E of Christchurch, New Zealand on February 18, 2021 at 20:33 UTC had a depth of 16.5 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.6 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.6 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000dir2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, February 18, 2021). M2.6 Earthquake 13 km E of Christchurch, New Zealand — February 18, 2021. Retrieved April 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dir2/