Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 10-08-2021 and time 03:40:58 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.3 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 10-08-2021 01:40:58 (UTC)
  • 10-08-2021 03:40:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5260, 15.5350 at 153 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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

An earthquake occurred to
37 Km N of Messina (238439 inhabitants)
47 Km N of Reggio di Calabria (183035 inhabitants)
85 Km SW of Lamezia Terme (70714 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
Bulletin
Rev1000 		ML 2.3 2021-08-10
01:40:58		 38.5263 15.5353 153 2021-12-29
11:12:32		 Bollettino Sismico Italiano INGV 95843041
Reviewed
Rev100 		ML 2.3 2021-08-10
01:40:58		 38.5195 15.5107 153 2021-08-10
02:00:01		 Sala Sismica INGV-Roma 93904101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-10 01:40:58 ± 0.24
Latitude 38.5263 ± 0.0108
Longitude 15.5353 ± 0.0207
Depth (km) 153 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95843041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1757
Semi-minor axis of confidence ellipse (meter) 727
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 1760.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.26350
Epicentral distance of station farthest from the epicenter (degree) 1.35438
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 93904101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-10 02:00:01

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 95843041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-24 18:50:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRIS.EHZ. 2021-08-10T01:41:46.77 0.1 undecidable manual S 11 137.4624 135 0.4 81
IV.CET2.HHZ. 2021-08-10T01:41:43.55 0.6 undecidable manual S 18 116.8941 140 0.15 45
IV.CAR1.HHZ. 2021-08-10T01:41:40.68 0.1 undecidable manual S 36 99.5226 145 -0.44 85
IV.PLAC.HHZ. 2021-08-10T01:41:38.99 0.3 undecidable manual S 96 78.8655 151 0.24 69
IV.GIZZ.HHN. 2021-08-10T01:41:38.15 0.6 undecidable manual S 49 76.8675 152 -0.39 45
IV.AIO.HHE. 2021-08-10T01:41:38.89 0.6 undecidable manual S 203 66.9774 155 1.31 31
IV.IVUG.HHZ. 2021-08-10T01:41:37.00 0.6 undecidable manual S 253 49.9167 161 0.82 42
IV.MTTG.HHZ. 2021-08-10T01:41:37.42 0.6 undecidable manual S 166 59.7957 157 0.47 46
IV.SOI.EHN. 2021-08-10T01:41:37.28 0.6 undecidable manual S 138 67.5768 155 -0.36 47
IV.FERC.HNN. 2021-08-10T01:41:36.96 0.6 undecidable manual S 99 52.1034 160 0.61 44
IV.IVPL.HHZ. 2021-08-10T01:41:36.55 0.6 undecidable manual S 251 51.0156 160 0.28 49
IV.MILZ.HHZ. 2021-08-10T01:41:35.37 0.3 undecidable manual S 223 38.7279 165 -0.1 77
IV.MPNC.HHN. 2021-08-10T01:41:35.76 0.6 undecidable manual S 201 45.0216 163 -0.1 51
IV.JOPP.HHZ. 2021-08-10T01:41:34.70 0.3 undecidable manual S 74 31.6461 168 -0.41 74
IV.MSRU.HHZ. 2021-08-10T01:41:34.81 0.6 undecidable manual S 185 29.2485 168 -0.19 52
IV.SICLA.EHZ. 2021-08-10T01:41:34.64 0.3 undecidable manual S 152 33.744 167 -0.57 71
IV.LADO.EHZ. 2021-08-10T01:41:27.17 1.0 undecidable manual P 56 150.3384 133 -0.15 21
IV.GRIS.EHZ. 2021-08-10T01:41:26.38 0.1 undecidable manual P 11 137.4624 135 0.22 84
MN.TIP.HHZ. 2021-08-10T01:41:25.63 0.6 undecidable manual P 55 128.0718 137 0.27 42
IV.CET2.HHZ. 2021-08-10T01:41:24.49 0.6 undecidable manual P 18 116.8941 140 0.04 45
IV.SERS.HHZ. 2021-08-10T01:41:24.59 0.1 negative manual P 60 114.5964 141 0.32 85
IV.CAR1.HHZ. 2021-08-10T01:41:22.94 0.6 undecidable manual P 36 99.5226 145 -0.19 45
IV.MUCR.HHZ. 2021-08-10T01:41:22.05 0.6 undecidable manual P 227 78.6657 151 0.3 46
IV.AIO.HHE. 2021-08-10T01:41:21.49 0.1 undecidable manual P 203 66.9774 155 0.41 92
IV.PLAC.HHZ. 2021-08-10T01:41:21.91 1.0 undecidable manual P 96 78.8655 151 0.15 24
IV.NOV.HHZ. 2021-08-10T01:41:21.42 0.1 undecidable manual P 212 65.2902 155 0.42 92
IV.GIZZ.HHN. 2021-08-10T01:41:21.39 0.1 undecidable manual P 49 76.8675 152 -0.25 94
IV.IVPL.HHZ. 2021-08-10T01:41:20.16 0.3 undecidable manual P 251 51.0156 160 -0.17 75
IV.MTTG.HHZ. 2021-08-10T01:41:20.81 0.1 undecidable manual P 166 59.7957 157 0.09 99
IV.SOI.EHN. 2021-08-10T01:41:20.93 0.1 undecidable manual P 138 67.5768 155 -0.19 97
IV.FERC.HNN. 2021-08-10T01:41:20.97 0.1 undecidable manual P 99 52.1034 160 0.6 89
IV.MSRU.HHZ. 2021-08-10T01:41:19.16 0.1 undecidable manual P 185 29.2485 168 -0.44 98
IV.SICLA.EHZ. 2021-08-10T01:41:19.22 0.6 undecidable manual P 152 33.744 167 -0.5 48
IV.IVUG.HHZ. 2021-08-10T01:41:19.83 0.1 undecidable manual P 253 49.9167 161 -0.45 94
IV.MILZ.HHZ. 2021-08-10T01:41:19.35 0.1 positive manual P 223 38.7279 165 -0.52 95
IV.MPNC.HHN. 2021-08-10T01:41:19.86 0.1 undecidable manual P 201 45.0216 163 -0.23 100
IV.JOPP.HHZ. 2021-08-10T01:41:19.66 0.6 undecidable manual P 74 31.6461 168 0 53
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SICLA.EHN. ML:2.7 0.00023199999999999997 0.3 AML other m 2021-08-10T01:41:35.18
IV.MSRU.HHN. ML:2.5 0.00014533085 0.68 AML other m 2021-08-10T01:41:35.59
IV.SICLA.EHE. ML:2.5 0.00015939485 0.26 AML other m 2021-08-10T01:41:35.30
IV.MILZ.HHE. ML:3.0 0.00047050000000000005 0.62 AML other m 2021-08-10T01:41:35.96
IV.JOPP.HNE. ML:2.2 0.00008328129000000001 0.9 AML other m 2021-08-10T01:41:36.10
IV.JOPP.HHE. ML:1.8 0.000031961905 0.38 AML other m 2021-08-10T01:41:36.24
IV.MSRU.HHE. ML:2.7 0.00026141064999999996 0.24 AML other m 2021-08-10T01:41:36.41
IV.JOPP.HHN. ML:2.2 0.0000861 0.52 AML other m 2021-08-10T01:41:36.38
IV.JOPP.HNN. ML:2.2 0.00008361217500000002 0.58 AML other m 2021-08-10T01:41:36.09
IV.MILZ.HHN. ML:2.8 0.0002935 0.46 AML other m 2021-08-10T01:41:36.41
IV.PLAC.HHN. ML:2.3 0.000072512165 0.34 AML other m 2021-08-10T01:41:39.35
IV.PLAC.HHE. ML:1.8 0.000027293265 0.98 AML other m 2021-08-10T01:41:39.44
IV.PLAC.HNE. ML:2.3 0.00008251953000000001 0.32 AML other m 2021-08-10T01:41:39.28
IV.PLAC.HNN. ML:2.3 0.00007473351 0.54 AML other m 2021-08-10T01:41:39.36
IV.MTTG.HHE. ML:2.1 0.00005964999999999999 0.58 AML other m 2021-08-10T01:41:39.92
IV.IVPL.HHN. ML:2.2 0.00007635 0.5 AML other m 2021-08-10T01:41:40.32
IV.MTTG.HHN. ML:2.2 0.0000722 0.72 AML other m 2021-08-10T01:41:42.49
IV.IVPL.HHE. ML:2.2 0.0000793 1.22 AML other m 2021-08-10T01:41:43.62
IV.MUCR.HHE. ML:1.9 0.0000369262 0.4 AML other m 2021-08-10T01:41:43.01
IV.SERS.HNE. ML:2.4 0.00008390303 1.62 AML other m 2021-08-10T01:41:44.14
IV.MUCR.HHN. ML:2.1 0.0000492 1.4 AML other m 2021-08-10T01:41:44.14
IV.SERS.HHN. ML:2.0 0.00003295 0.34 AML other m 2021-08-10T01:41:44.42
IV.SERS.HHE. ML:2.0 0.0000312 0.4 AML other m 2021-08-10T01:41:44.54
IV.CET2.HHE. ML:2.3 0.00007062966 0.28 AML other m 2021-08-10T01:41:44.60
IV.CET2.HHN. ML:2.7 0.0001545 1.68 AML other m 2021-08-10T01:41:45.85
IV.CAR1.HHE. ML:2.0 0.00003465 0.52 AML other m 2021-08-10T01:41:45.09
IV.CAR1.HNN. ML:2.4 0.00008004926000000001 0.2096 AML other m 2021-08-10T01:41:45.60
IV.CAR1.HHN. ML:2.2 0.0000594 0.52 AML other m 2021-08-10T01:41:46.51
IV.SERS.HNN. ML:2.1 0.000041104625 0.68 AML other m 2021-08-10T01:41:46.34
MN.TIP.HNN. ML:2.7 0.0001392901 0.54 AML other m 2021-08-10T01:41:46.90
IV.CAR1.HNE. ML:2.3 0.000072047185 0.56 AML other m 2021-08-10T01:41:46.64
MN.TIP.HHE. ML:1.7 0.000017260595000000002 0.78 AML other m 2021-08-10T01:41:47.07
MN.TIP.HHN. ML:1.7 0.00001703748 0.38 AML other m 2021-08-10T01:41:47.96
MN.TIP.HNE. ML:2.1 0.000037449085 0.68 AML other m 2021-08-10T01:41:47.84
IV.GRIS.EHN. ML:2.0 0.000031351485 0.46 AML other m 2021-08-10T01:41:48.57
IV.GRIS.EHE. ML:2.0 0.000026284334999999997 0.48 AML other m 2021-08-10T01:41:48.35
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download