M2.2 Earthquake near Porterville, CA — 02 August 2026
A minor earthquake of magnitude 2.2 was recorded near Porterville, CA on , with an epicentre 24 km south-southeast of Porterville, at a focal depth of 12.0 km.
Time (UTC): 2026-08-02 16:13:17
Time (your timezone): —
Magnitude: 2.2 (minor)
Focal depth: 12.0 km (shallow)
Epicentre: 35.8653, -118.9280
Location: 24 km SSE of Porterville, CA
USGS link to NOAA tsunami information: Not linked
Review status: Reviewed
Source: USGS event page
How strong was this earthquake?
Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage.
A magnitude 2.2 earthquake radiates roughly 27 kg of TNT equivalent in seismic energy.
The USGS assigns this earthquake a significance score of 72, which is below the USGS threshold of more than 600 for its significant-earthquake list. The ranking combines magnitude with available Did You Feel It responses and PAGER alert level; it is not a direct measurement of damage.
Where was the epicentre?
The epicentre was located at 35.8653, -118.9280 — 24 km south-southeast of Porterville. The closest other recorded event was a magnitude 1.5 earthquake 36 km southeast of here on 02 August 2026.
Why the 12 km depth matters
At 12 km this was a shallow earthquake. Shallow events release their energy close to the surface, so for a given magnitude they produce noticeably stronger shaking — and more damage — than deeper ones. Roughly three quarters of all earthquakes worldwide occur at shallow depths.
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, events this small are usually detected by instruments rather than people. Its shallow focus makes stronger surface shaking more likely than for a deeper event of the same magnitude.
What does the tsunami information flag mean?
The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M2.2 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.
How earthquakes generate tsunamis, and what the alert levels mean →
Aftershocks and local seismic history
No further earthquakes have been recorded within about 150 km of the epicentre since this event was recorded.
14 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 4.8 event near Big Pine on 29 June 2025. This M2.2 event released about 8,810 times less energy than that event.
How long aftershock sequences last, and how large they get →
Where this event sits in the record
This earthquake is part of the August 2026 worldwide record. Browse the full monthly archive to compare periods.
Nearest recorded earthquakes to this epicentre
- M1.5 earthquake near Lake Isabella, CA — (36 km SE)
- M1.5 earthquake near Bodfish, CA — (36 km SE)
- M0.8 earthquake near Lake Isabella, CA — (37 km SE)
- M0.6 earthquake near Wofford Heights, CA — (51 km ESE)
- M1.1 earthquake near Bodfish, CA — (63 km SE)
- M2.2 earthquake near Olancha, CA — (73 km NE)
- M1.2 earthquake near Lamont, CA — (79 km S)
- M1.7 earthquake near Lamont, CA — (79 km S)
- M1.5 earthquake near Lamont, CA — (79 km S)
- M0.4 earthquake near Little Lake, CA — (80 km E)
Other magnitude 2 earthquakes worldwide
- M2.0 earthquake near Toyah, Texas —
- M2.1 earthquake near Paxson, Alaska —
- M2.1 earthquake near Pinnacles, CA —
- M2.2 earthquake near Camp Pendleton South —
- M1.9 earthquake near Chickasha, Oklahoma —
- M2.2 earthquake near Hawaiian Ocean View —
- M2.2 earthquake near Idyllwild, CA —
- M2.3 earthquake near Pāhala, Hawaii —
Questions about this earthquake
How strong is a magnitude 2.2 earthquake?
Minor earthquakes in this range are felt by people close to the epicentre as a brief jolt or rattle, but they very rarely cause any damage. A magnitude 2.2 earthquake radiates roughly 27 kg of TNT equivalent in seismic energy.
How deep was the earthquake near Porterville?
At 12 km this was a shallow earthquake. Shallow events release their energy close to the surface, so for a given magnitude they produce noticeably stronger shaking — and more damage — than deeper ones. Roughly three quarters of all earthquakes worldwide occur at shallow depths.
Was the M2.2 earthquake near Porterville felt?
This catalogue does not ingest eyewitness responses, so it cannot confirm where this earthquake was felt. Based on magnitude alone, events this small are usually detected by instruments rather than people. Its shallow focus makes stronger surface shaking more likely than for a deeper event of the same magnitude.
What does the USGS tsunami field mean for this event?
The USGS record does not carry a link to NOAA tsunami information. That field is not an all-clear and does not state whether a tsunami occurred. In this case, a damaging tsunami would be less likely because at M2.2 it falls below the magnitude 6.5 threshold that generally applies before a submarine earthquake displaces enough water to generate a damaging tsunami; it occurred inland rather than beneath the sea floor. For an active coastal alert, use tsunami.gov or your local warning authority.
Have there been aftershocks?
No further earthquakes have been recorded within about 150 km of the epicentre since this event was recorded.
How often do earthquakes happen near Porterville?
14 earthquakes of magnitude 4 or above have been logged within roughly 200 km of this epicentre in our catalogue. The strongest was a magnitude 4.8 event near Big Pine on 29 June 2025. This M2.2 event released about 8,810 times less energy than that event.