Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 24-04-2022 and time 01:06:57 (Italy) in region Tunisia [Sea]

A magnitude ML 2.6 earthquake occured in region: Tunisia [Sea], on

  • 23-04-2022 23:06:57 (UTC)
  • 24-04-2022 01:06:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 34.9390, 12.9430 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 2.6 2022-04-23
23:06:57		 34.9388 12.9428 10 2022-04-23
23:26:14		 Sala Sismica INGV-Roma 103675241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-23 23:06:57 ± 0.31
Latitude 34.9388 ± 0.0342
Longitude 12.9428 ± 0.0570
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 103675241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6140
Semi-minor axis of confidence ellipse (meter) 1930
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 6140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 340
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.86704
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 10
Magnitude information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 103675241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-23 23:26:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2022-04-23T23:08:17.56 0.1 undecidable manual S 32 2.8670 38 0.11 89
1J.FX11.HHZ. 2022-04-23T23:08:13.33 3.0 undecidable manual S 0 0
IV.HVZN.HHZ. 2022-04-23T23:08:12.77 0.3 undecidable manual S 32 2.6566 38 0.36 68
IV.HAVL.HHZ. 2022-04-23T23:08:12.98 0.6 undecidable manual S 40 2.6800 38 -0.01 49
IV.RAFF.HHE. 2022-04-23T23:08:09.99 0.6 undecidable manual S 26 2.5532 38 0.04 50
IV.HMDC.HHZ. 2022-04-23T23:08:08.29 0.6 undecidable manual S 36 2.5082 38 -0.57 45
IV.SCIAC.HHZ. 2022-04-23T23:08:07.28 3.0 undecidable manual S 0
IV.HVIT.HHZ. 2022-04-23T23:08:06.50 0.6 undecidable manual S 31 2.4165 38 -0.18 51
IV.GALF.HHZ. 2022-04-23T23:07:47.61 3.0 negative manual Pn -1.95 0
IV.RESU.HHZ. 2022-04-23T23:07:45.93 3.0 undecidable manual P 0
MN.VAE.HHE. 2022-04-23T23:07:44.12 3.0 undecidable manual P 2.7717 1.94 0
IV.HLNI.HHZ. 2022-04-23T23:07:43.45 0.1 undecidable manual P 32 2.8670 38 -0.04 91
IV.CMDO.HHE. 2022-04-23T23:07:42.48 3.0 undecidable manual P 2.6206 2.38 0
IV.HAVL.HHZ. 2022-04-23T23:07:41.05 0.1 undecidable manual P 40 2.6800 38 0.14 95
IV.SCIAC.HHZ. 2022-04-23T23:07:40.83 3.0 undecidable manual P 0
IV.HVZN.HHZ. 2022-04-23T23:07:40.53 0.1 undecidable manual P 32 2.6566 38 -0.05 97
IV.ISPIC.HNZ. 2022-04-23T23:07:38.13 0.6 undecidable manual P 40 2.4300 38 0.68 44
IV.RAFF.HHE. 2022-04-23T23:07:38.91 0.1 undecidable manual P 26 2.5532 38 -0.25 96
IV.ACATE.HNZ. 2022-04-23T23:07:38.18 1.0 undecidable manual P 31 2.4345 38 0.66 22
IV.HMDC.HHZ. 2022-04-23T23:07:38.40 0.1 undecidable manual P 36 2.5082 38 -0.13 100
IV.CLTA.HHE. 2022-04-23T23:07:36.87 0.3 undecidable manual P 20 2.3652 38 0.31 76
IV.HVIT.HHZ. 2022-04-23T23:07:36.69 0.3 undecidable manual P 31 2.4165 38 -0.58 69
IV.CROCE.HHZ. 2022-04-23T23:07:35.69 1.0 undecidable manual P 34 2.2888 38 0.18 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAVL.HHE. ML:2.3 0.000027181975 0.2688 AML other m 2022-04-23T23:07:58.78
IV.HLNI.HHN. ML:2.5 0.000032548935 2.0864 AML other m 2022-04-23T23:08:17.02
IV.HLNI.HHE. ML:2.5 0.000035574599999999996 2.1888 AML other m 2022-04-23T23:08:14.73
IV.HAVL.HHN. ML:2.6 0.000053599999999999995 0.24 AML other m 2022-04-23T23:07:48.91
IV.HMDC.HHE. ML:2.4 0.00003686789999999999 0.4224 AML other m 2022-04-23T23:07:49.72
IV.HMDC.HHN. ML:2.6 0.000055682170000000005 0.3968 AML other m 2022-04-23T23:07:53.40
IV.HVZN.HHE. ML:2.9 0.0000929143 0.5504 AML other m 2022-04-23T23:08:05.79
IV.HVZN.HHN. ML:2.7 0.000069112725 0.4096 AML other m 2022-04-23T23:08:08.65
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download