M 7.6 earthquake – 82 km WNW of Hihifo, Tonga
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Local time: May 11, 2023 · 04:02 (UTC+12)
MajorIntermediate · 210 kmPAGER greenTsunami information issued
Reviewed by a seismologist
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- Magnitude
- 7.6moment magnitude (mww)
- Depth
- 210 kmIntermediate earthquake
- Epicenter
- -15.628, -174.493318 km from Mata-Utu
- Energy released
- 3.8 megatons of TNTabout 253 × Hiroshima
- Felt reports
- 26"Did You Feel It?" responses
- Shaking intensity
- 6.0max. instrumental (MMI)
- Aftershocks
- 44M2.5+ within 166 km, up to 60 days
- Significance
- 910USGS score, 0–1,000+
The strongest here since 2009
The last earthquake at least as strong within 300 km struck on Sep 29, 2009.
How strong was it?
Major earthquake. It released 3.8 megatons of TNT, 7,943 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
44 earthquakes of M2.5+ within 166 km in the 60 days after.
- 4.8 48 km WNW of Hihifo, Tonga May 10, 2023
- 4.7 80 km WNW of Hihifo, Tonga May 10, 2023
- 5.0 74 km WNW of Hihifo, Tonga May 10, 2023
- 4.7 98 km WNW of Hihifo, Tonga May 10, 2023
- 4.4 Tonga May 10, 2023
- 4.3 106 km WNW of Hihifo, Tonga May 10, 2023
- 4.4 72 km WNW of Hihifo, Tonga May 10, 2023
- 4.6 94 km WNW of Hihifo, Tonga May 10, 2023
- 4.4 Tonga May 10, 2023
- 4.0 Tonga May 10, 2023
The strongest earthquakes within 300 km
Since 1900, around Tonga.
- 8.1 2009 Samoa Earthquake Sep 29, 2009
- 8.0 The 1917 Samoa-Tonga Earthquake Jun 26, 1917
- 7.8 146 km ESE of Hihifo, Tonga Dec 26, 1975
- 7.7 133 km NE of Hihifo, Tonga Sep 1, 1981
- 7.6 199 km ESE of Hihifo, Tonga Apr 2, 1977
- 7.4 88 km NNE of Hihifo, Tonga Apr 7, 1995
- 7.2 117 km SSW of Hihifo, Tonga Jan 8, 2000
- 7.2 19 km ENE of Hihifo, Tonga Oct 15, 1984