Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-07-2023 and time 04:37:28 (Italy) in region 3 km E Atella (PZ)

A magnitude ML 2.1 earthquake occured in region: 3 km E Atella (PZ), on

  • 23-07-2023 02:37:28 (UTC)
  • 23-07-2023 04:37:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8850, 15.6920 at 11 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Atella PZ 3 3827 3827
Ripacandida PZ 5 1744 5571
Rionero in Vulture PZ 5 13230 18801
Ginestra PZ 6 747 19548
Barile PZ 7 2785 22333
Filiano PZ 8 2926 25259
Rapolla PZ 11 4432 29691
Maschito PZ 12 1670 31361
Melfi PZ 13 17767 49128
Ruvo del Monte PZ 13 1083 50211
Forenza PZ 14 2122 52333
Venosa PZ 14 11863 64196
San Fele PZ 15 3004 67200
Rapone PZ 17 990 68190
Avigliano PZ 17 11577 79767
Ruoti PZ 19 3579 83346
Monteverde AV 19 784 84130
Bella PZ 19 5171 89301

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Potenza (67122 inhabitants)
46 Km SW of Cerignola (58396 inhabitants)
63 Km SW of Andria (100440 inhabitants)
66 Km S of Foggia (151991 inhabitants)
67 Km E of Battipaglia (50786 inhabitants)
69 Km SW of Barletta (94814 inhabitants)
73 Km W of Altamura (70396 inhabitants)
75 Km SW of Trani (56217 inhabitants)
75 Km E of Avellino (54857 inhabitants)
79 Km SW of Bisceglie (55422 inhabitants)
80 Km W of Matera (60436 inhabitants)
81 Km E of Benevento (60091 inhabitants)
82 Km E of Salerno (135261 inhabitants)
84 Km W of Molfetta (59874 inhabitants)
85 Km S of Manfredonia (57279 inhabitants)
85 Km E of Cava de' Tirreni (53659 inhabitants)
88 Km W of Bitonto (55540 inhabitants)
93 Km S of San Severo (53905 inhabitants)
99 Km E of Scafati (50787 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 2.1 2023-07-23
02:37:28		 40.8847 15.6918 11 2023-07-23
02:50:26		 Sala Sismica INGV-Roma 119491151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-23 02:37:28 ± 0.09
Latitude 40.8847 ± 0.0045
Longitude 15.6918 ± 0.0048
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119491151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 452
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75363
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 28
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 86
Type of magnitude ML
Reference to an origin 119491151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-23 02:50:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2023-07-23T02:38:15.72 3.0 positive manual Pg 6.99 0
IV.NOCI.HHZ. 2023-07-23T02:38:04.62 3.0 undecidable manual S -0.1 0
GE.MATE.HHZ. 2023-07-23T02:37:57.34 3.0 undecidable manual S 0.22 0
IV.RNI2.HHZ. 2023-07-23T02:37:55.85 3.0 undecidable manual P 2.01 0
IV.MTSN.HHZ. 2023-07-23T02:37:49.06 0.3 undecidable manual S 176 68.7756 50 -0.29 65
IV.NOCI.HHZ. 2023-07-23T02:37:49.12 3.0 negative manual P 0.31 0
IV.MIGL.HHZ. 2023-07-23T02:37:49.94 0.6 undecidable manual S 116 70.1742 50 0.21 44
IV.MCEL.HHZ. 2023-07-23T02:37:48.27 0.6 undecidable manual S 171 62.7927 50 0.52 42
OT.OT14.EHZ. 2023-07-23T02:37:48.68 3.0 positive manual P 0.05 0
IV.SLCN.HHZ. 2023-07-23T02:37:46.37 0.6 undecidable manual S 185 55.1004 50 0.68 40
IV.APRC.HHZ. 2023-07-23T02:37:46.24 3.0 positive manual P 0.17 0
IV.SGRT.HHZ. 2023-07-23T02:37:45.22 3.0 undecidable manual P -0.71 0
IX.SRN3.HHZ.02 2023-07-23T02:37:44.25 0.6 undecidable manual S 204 48.4182 50 0.34 45
OT.OT05.EHZ. 2023-07-23T02:37:44.97 3.0 positive manual P 0.76 0
IV.PTRP.HHZ. 2023-07-23T02:37:44.58 0.6 undecidable manual S 142 50.9157 50 0.01 47
IV.AMUR.HHZ. 2023-07-23T02:37:43.26 3.0 positive manual P 0.71 0
OT.OT12.EHZ. 2023-07-23T02:37:43.03 3.0 negative manual P -0.99 0
IV.SNAL.HHZ. 2023-07-23T02:37:42.49 0.3 undecidable manual S 277 40.7259 50 0.63 62
IX.SNR3.EHZ.02 2023-07-23T02:37:42.98 0.3 undecidable manual S 249 45.0216 50 -0.03 72
IV.MGR.HHZ. 2023-07-23T02:37:42.36 0.6 negative manual P 188 83.6496 50 -0.47 41
IV.MCRV.HHZ. 2023-07-23T02:37:42.81 0.6 undecidable manual S 256 45.4212 50 -0.29 45
IV.SIRI.HHZ. 2023-07-23T02:37:41.81 0.6 undecidable manual P 169 79.365 50 -0.35 42
IV.SGTA.HHZ. 2023-07-23T02:37:41.33 0.6 undecidable manual S 316 39.0276 50 -0.06 48
IV.CAFE.HHZ. 2023-07-23T02:37:41.90 0.6 undecidable manual S 293 41.3253 50 -0.12 47
IV.MIGL.HHZ. 2023-07-23T02:37:41.26 0.6 undecidable manual P 116 70.1742 50 0.51 41
IV.CMPR.HHZ. 2023-07-23T02:37:40.27 0.6 negative manual P 208 70.8735 50 -0.58 40
IX.COL3.HHZ.02 2023-07-23T02:37:40.46 0.3 undecidable manual S 234 37.4292 50 -0.52 65
IX.PGN3.HHZ.02 2023-07-23T02:37:40.21 0.3 undecidable manual S 166 35.742 50 -0.32 69
IV.MTSN.HHZ. 2023-07-23T02:37:39.93 1.0 negative manual P 176 68.7756 50 -0.6 20
IV.MRB1.HHZ. 2023-07-23T02:37:39.98 0.6 undecidable manual P 294 66.0894 50 -0.14 45
IV.CAPA.HHZ. 2023-07-23T02:37:39.66 0.3 undecidable manual S 19 32.1456 50 0.11 72
IV.MCEL.HHZ. 2023-07-23T02:37:39.14 0.1 undecidable manual P 171 62.7927 50 -0.47 84
IV.PTRP.HHZ. 2023-07-23T02:37:38.76 3.0 undecidable manual P 142 50.9157 50 0.99 0
IV.SLCN.HHZ. 2023-07-23T02:37:38.24 0.3 positive manual P 185 55.1004 50 -0.18 68
IV.PZUN.HHZ. 2023-07-23T02:37:38.29 0.6 undecidable manual S 160 28.2495 50 -0.23 47
IV.CDRU.HHZ. 2023-07-23T02:37:37.87 0.1 positive manual P 217 54.6009 50 -0.48 86
IX.CLT3.EHZ.02 2023-07-23T02:37:37.82 0.6 undecidable manual S 275 24.1536 50 0.38 46
IX.SCL3.EHZ.02 2023-07-23T02:37:37.81 0.3 undecidable manual S 216 25.9518 50 -0.1 73
IV.ACER.HHZ. 2023-07-23T02:37:37.23 0.6 undecidable manual S 117 23.6541 50 -0.08 49
IX.SRN3.HHZ.02 2023-07-23T02:37:37.18 0.1 positive manual P 204 48.4182 50 -0.21 92
IV.CAFE.HHZ. 2023-07-23T02:37:36.22 0.3 positive manual P 293 41.3253 50 -0.08 71
IV.MCRV.HHZ. 2023-07-23T02:37:36.51 0.3 negative manual P 256 45.4212 50 -0.41 66
IV.PALZ.HHZ. 2023-07-23T02:37:36.77 0.3 undecidable manual S 74 23.4543 50 -0.47 68
IX.SNR3.EHZ.02 2023-07-23T02:37:36.78 0.1 negative manual P 249 45.0216 50 -0.09 94
IV.SGTA.HHZ. 2023-07-23T02:37:36.00 0.3 negative manual P 316 39.0276 50 0.06 72
IX.BEL3.HNE.01 2023-07-23T02:37:36.35 0.6 undecidable manual S 194 19.3695 50 0.2 48
IX.COL3.HHZ.02 2023-07-23T02:37:35.50 0.1 positive manual P 234 37.4292 50 -0.2 94
IX.PGN3.HHZ.02 2023-07-23T02:37:35.81 0.1 negative manual P 166 35.742 50 0.37 91
IV.PZUN.HHZ. 2023-07-23T02:37:35.00 0.1 undecidable manual P 160 28.2495 50 0.72 82
IV.SNAL.HHZ. 2023-07-23T02:37:35.99 0.1 positive manual P 277 40.7259 50 -0.22 93
IV.CAPA.HHZ. 2023-07-23T02:37:34.27 1.0 undecidable manual P 19 32.1456 50 -0.61 21
IX.RDM3.HHN.02 2023-07-23T02:37:34.28 0.6 undecidable manual S 266 13.0758 130 -0.13 50
IX.CLT3.EHZ.02 2023-07-23T02:37:34.37 0.1 undecidable manual P 275 24.1536 50 0.71 83
IV.AVG3.HNZ. 2023-07-23T02:37:34.55 3.0 undecidable manual S 0
IX.SCL3.EHZ.02 2023-07-23T02:37:34.51 0.3 negative manual P 216 25.9518 50 0.58 65
IV.ACER.HHZ. 2023-07-23T02:37:33.80 0.1 undecidable manual P 117 23.6541 50 0.22 96
IV.AVG3.HNZ.01 2023-07-23T02:37:33.26 3.0 undecidable manual P 0
IV.VULT.HHZ. 2023-07-23T02:37:33.21 0.3 undecidable manual S 321 10.0788 137 -0.42 70
IX.SFL3.HNE.01 2023-07-23T02:37:33.66 3.0 undecidable manual S 222 14.2746 127 -1.07 0
IX.BEL3.HNE.01 2023-07-23T02:37:33.28 0.1 undecidable manual P 194 19.3695 50 0.37 93
IV.PALZ.HHZ. 2023-07-23T02:37:33.54 0.1 positive manual P 74 23.4543 50 0 100
IX.RDM3.HHN.02 2023-07-23T02:37:32.60 0.1 undecidable manual P 266 13.0758 130 0.69 85
IV.VULT.HHZ. 2023-07-23T02:37:31.57 0.1 negative manual P 321 10.0788 137 0.11 100
IX.SFL3.HNE.01 2023-07-23T02:37:31.89 0.1 undecidable manual P 222 14.2746 127 -0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VULT.HHE. ML:2.2 0.0020350000000000004 0.14 AML other m 2023-07-23T02:37:33.83
IV.VULT.HHN. ML:2.1 0.001605 0.28 AML other m 2023-07-23T02:37:33.88
IX.SCL3.EHE.02 ML:2.1 0.0007869999999999999 0.98 AML other m 2023-07-23T02:37:36.14
IV.ACER.HNE. ML:2.4 0.0015550000000000002 0.44 AML other m 2023-07-23T02:37:38.44
IV.ACER.HHE. ML:2.4 0.0016400000000000002 0.44 AML other m 2023-07-23T02:37:38.44
IX.CLT3.HNE.01 ML:2.4 0.0015 1.78 AML other m 2023-07-23T02:37:39.03
IX.CLT3.EHE.02 ML:2.4 0.0014849999999999998 1.78 AML other m 2023-07-23T02:37:39.03
IX.CLT3.EHN.02 ML:2.5 0.00175 1.72 AML other m 2023-07-23T02:37:40.98
IX.CLT3.HNN.01 ML:2.4 0.00171 1.72 AML other m 2023-07-23T02:37:40.98
IV.CAPA.HHE. ML:1.9 0.0003665 0.72 AML other m 2023-07-23T02:37:40.53
IV.CAPA.HNE. ML:1.5 0.0001389 0.74 AML other m 2023-07-23T02:37:40.54
IX.SCL3.HNE.01 ML:2.2 0.0007989999999999999 1.18 AML other m 2023-07-23T02:37:41.66
IV.CAPA.HNN. ML:1.7 0.0002305 0.9 AML other m 2023-07-23T02:37:41.76
IV.CAPA.HHN. ML:2.0 0.00045 1.46 AML other m 2023-07-23T02:37:42.76
IV.PALZ.HHN. ML:2.0 0.000653 1.08 AML other m 2023-07-23T02:37:42.81
IX.PGN3.HHE.02 ML:1.8 0.0002695 0.34 AML other m 2023-07-23T02:37:42.54
IX.SCL3.HNN.01 ML:2.3 0.001139 0.46 AML other m 2023-07-23T02:37:42.55
IX.SCL3.EHN.02 ML:2.3 0.0010750000000000002 0.46 AML other m 2023-07-23T02:37:42.78
IV.SGTA.HHE. ML:1.6 0.00014150000000000002 1.84 AML other m 2023-07-23T02:37:42.95
IV.SNAL.HHN. ML:1.9 0.00026000000000000003 1.04 AML other m 2023-07-23T02:37:43.70
IV.ACER.HNN. ML:2.0 0.0006945 0.56 AML other m 2023-07-23T02:37:43.48
IV.ACER.HHN. ML:2.1 0.0007235000000000001 0.54 AML other m 2023-07-23T02:37:43.48
IX.PGN3.HHN.02 ML:1.8 0.0002525 0.22 AML other m 2023-07-23T02:37:43.54
IV.SNAL.HNE. ML:1.9 0.0002585 1.44 AML other m 2023-07-23T02:37:43.18
IV.SNAL.HHE. ML:1.8 0.00021550000000000003 0.16 AML other m 2023-07-23T02:37:44.26
IX.SNR3.HNE.01 ML:2.2 0.000475 1.44 AML other m 2023-07-23T02:37:44.84
IV.SNAL.HNN. ML:1.9 0.00026450000000000003 0.68 AML other m 2023-07-23T02:37:44.55
IV.MCRV.HHN. ML:2.3 0.0005545 0.12 AML other m 2023-07-23T02:37:44.99
IV.CAFE.HHN. ML:1.7 0.0001475 0.32 AML other m 2023-07-23T02:37:44.81
IV.MCRV.HHE. ML:2.2 0.00041500000000000006 1.62 AML other m 2023-07-23T02:37:45.00
IX.SNR3.EHN.02 ML:2.3 0.000617 0.96 AML other m 2023-07-23T02:37:45.63
IX.SNR3.HNN.01 ML:2.4 0.000734 0.96 AML other m 2023-07-23T02:37:45.15
IX.COL3.HHN.02 ML:2.2 0.0005620000000000001 0.54 AML other m 2023-07-23T02:37:45.20
IX.SRN3.HHN.02 ML:2.3 0.000505 1.02 AML other m 2023-07-23T02:37:45.43
IV.SGTA.HHN. ML:1.5 0.00010675 0.38 AML other m 2023-07-23T02:37:45.54
IV.CAFE.HNE. ML:1.8 0.0002305 0.4 AML other m 2023-07-23T02:37:46.57
IX.SNR3.EHE.02 ML:2.0 0.00032099999999999994 0.24 AML other m 2023-07-23T02:37:46.64
IX.COL3.HHE.02 ML:2.2 0.0006734999999999999 0.2 AML other m 2023-07-23T02:37:46.84
IV.CAFE.HHE. ML:1.8 0.00020250000000000002 1.56 AML other m 2023-07-23T02:37:48.06
IV.PALZ.HHE. ML:2.0 0.0006715 0.56 AML other m 2023-07-23T02:37:48.00
IV.CDRU.HHE. ML:1.9 0.0001825 0.98 AML other m 2023-07-23T02:37:48.90
IV.CDRU.HHN. ML:1.7 0.0001105 0.26 AML other m 2023-07-23T02:37:48.61
IV.CAFE.HNN. ML:1.6 0.0001375 0.72 AML other m 2023-07-23T02:37:48.35
IX.SRN3.HHE.02 ML:2.0 0.00029700000000000006 1.24 AML other m 2023-07-23T02:37:49.07
IV.SLCN.HHN. ML:2.0 0.000241 0.34 AML other m 2023-07-23T02:37:51.37
IV.PTRP.HHE. ML:1.6 0.00009865 0.48 AML other m 2023-07-23T02:37:51.01
IV.MCEL.HNN. ML:2.3 0.0003805 0.56 AML other m 2023-07-23T02:37:52.53
IV.MCEL.HHE. ML:1.9 0.00014900000000000002 0.28 AML other m 2023-07-23T02:37:52.60
IV.MCEL.HHN. ML:1.8 0.00013350000000000002 1.58 AML other m 2023-07-23T02:37:53.08
IV.MCEL.HNE. ML:2.4 0.0004535 0.44 AML other m 2023-07-23T02:37:53.37
IV.CMPR.HHN. ML:1.8 0.00011449999999999999 0.34 AML other m 2023-07-23T02:37:54.36
IV.MIGL.HHN. ML:2.3 0.0003505 0.6 AML other m 2023-07-23T02:37:54.20
IV.MIGL.HHE. ML:2.2 0.00028300000000000005 0.3 AML other m 2023-07-23T02:37:54.42
IV.SLCN.HHE. ML:2.1 0.00028000000000000003 0.32 AML other m 2023-07-23T02:37:54.70
OT.OT12.EHE. ML:2.3 0.00027100000000000003 1.06 AML other m 2023-07-23T02:37:55.86
OT.OT12.EHN. ML:2.5 0.0004395 0.26 AML other m 2023-07-23T02:37:55.47
IV.AMUR.HHN. ML:2.3 0.0003045 1.2 AML other m 2023-07-23T02:37:55.04
IV.AMUR.HNN. ML:2.3 0.00026949999999999994 1.2 AML other m 2023-07-23T02:37:55.04
IV.MTSN.HHE. ML:1.9 0.0001395 0.68 AML other m 2023-07-23T02:37:55.99
IV.MTSN.HHN. ML:1.9 0.00014000000000000001 1.3 AML other m 2023-07-23T02:37:56.74
IV.AMUR.HNE. ML:2.2 0.00023099999999999998 0.34 AML other m 2023-07-23T02:37:56.28
IV.AMUR.HHE. ML:2.2 0.00024249999999999999 0.34 AML other m 2023-07-23T02:37:56.28
IV.CMPR.HHE. ML:1.8 0.0001105 0.44 AML other m 2023-07-23T02:37:57.57
GE.MATE.HHE. ML:2.1 0.00016 0.22 AML other m 2023-07-23T02:37:58.00
IV.SIRI.HNN. ML:1.9 0.000117 0.62 AML other m 2023-07-23T02:37:58.62
IV.SGRT.HHN. ML:2.4 0.00028649999999999997 0.22 AML other m 2023-07-23T02:37:59.14
IV.SIRI.HHN. ML:1.9 0.00012064999999999999 0.6 AML other m 2023-07-23T02:37:59.51
GE.MATE.HHN. ML:2.1 0.0001615 0.44 AML other m 2023-07-23T02:37:59.27
IV.PTRP.HHN. ML:1.6 0.0000948 0.42 AML other m 2023-07-23T02:37:59.36
IV.SIRI.HHE. ML:1.9 0.00011995 0.24 AML other m 2023-07-23T02:38:00.20
IV.SGRT.HHE. ML:2.4 0.00028300000000000005 0.58 AML other m 2023-07-23T02:38:00.79
IV.MGR.HHE. ML:2.0 0.00011449999999999999 0.42 AML other m 2023-07-23T02:38:01.55
IV.APRC.HHN. ML:2.4 0.00027049999999999996 0.5 AML other m 2023-07-23T02:38:01.54
IV.MRB1.HNE. ML:1.9 0.00014465 0.38 AML other m 2023-07-23T02:38:02.20
IV.MRB1.HHE. ML:1.9 0.000144 1.38 AML other m 2023-07-23T02:38:02.01
IV.SIRI.HNE. ML:1.9 0.00011599999999999999 0.28 AML other m 2023-07-23T02:38:02.50
IV.MGR.HHN. ML:1.8 0.0000891 0.78 AML other m 2023-07-23T02:38:02.69
IV.APRC.HHE. ML:2.3 0.00020700000000000002 0.56 AML other m 2023-07-23T02:38:03.00
IV.MRB1.HHN. ML:2.0 0.00017299999999999998 1.46 AML other m 2023-07-23T02:38:04.74
IV.MRB1.HNN. ML:2.0 0.00016849999999999998 1.48 AML other m 2023-07-23T02:38:04.01
OT.OT14.EHE. ML:2.6 0.000294 1.12 AML other m 2023-07-23T02:38:04.04
OT.OT14.EHN. ML:2.6 0.0003015 0.26 AML other m 2023-07-23T02:38:07.13
IV.NOCI.HNE. ML:2.3 0.00016549999999999998 1.1 AML other m 2023-07-23T02:38:07.13
IV.NOCI.HNN. ML:2.3 0.0001625 1.04 AML other m 2023-07-23T02:38:08.01
IV.NOCI.HHN. ML:2.4 0.00017749999999999998 1.02 AML other m 2023-07-23T02:38:08.01
IV.NOCI.HHE. ML:2.3 0.00016299999999999998 1.68 AML other m 2023-07-23T02:38:09.87
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