Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 16-08-2023 and time 11:05:18 (Italy) in region 6 km NE San Gregorio Magno (SA)

A magnitude ML 2.0 earthquake occured in region: 6 km NE San Gregorio Magno (SA), on

  • 16-08-2023 09:05:18 (UTC)
  • 16-08-2023 11:05:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7070, 15.4230 at 6 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
San Gregorio Magno SA 6 4286 4286
Ricigliano SA 7 1144 5430
Muro Lucano PZ 7 5497 10927
Romagnano al Monte SA 9 368 11295
Castelgrande PZ 9 943 12238
Buccino SA 10 5047 17285
Balvano PZ 10 1830 19115
Colliano SA 11 3638 22753
Bella PZ 11 5171 27924
Palomonte SA 12 3985 31909
Salvitelle SA 13 560 32469
Laviano SA 13 1438 33907
Valva SA 13 1643 35550
Vietri di Potenza PZ 14 2832 38382
Santomenna SA 14 443 38825
Pescopagano PZ 15 1910 40735
Baragiano PZ 15 2671 43406
Castelnuovo di Conza SA 15 619 44025
Oliveto Citra SA 16 3802 47827
Sant'Andrea di Conza AV 16 1539 49366
San Fele PZ 16 3004 52370
Auletta SA 16 2336 54706
Contursi Terme SA 17 3394 58100
Caggiano SA 17 2765 60865
Rapone PZ 17 990 61855
Pertosa SA 18 690 62545
Conza della Campania AV 18 1373 63918
Senerchia AV 19 842 64760
Ruvo del Monte PZ 19 1083 65843
Savoia di Lucania PZ 19 1127 66970
Sicignano degli Alburni SA 19 3519 70489
Calabritto AV 19 2391 72880
Picerno PZ 20 5985 78865
Petina SA 20 1159 80024

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Potenza (67122 inhabitants)
39 Km E of Battipaglia (50786 inhabitants)
56 Km E of Salerno (135261 inhabitants)
58 Km E of Avellino (54857 inhabitants)
60 Km E of Cava de' Tirreni (53659 inhabitants)
72 Km SE of Benevento (60091 inhabitants)
74 Km SW of Cerignola (58396 inhabitants)
76 Km E of Scafati (50787 inhabitants)
79 Km E of Castellammare di Stabia (66466 inhabitants)
85 Km S of Foggia (151991 inhabitants)
89 Km E of Torre del Greco (86275 inhabitants)
91 Km E of Portici (55274 inhabitants)
91 Km E of Ercolano (53709 inhabitants)
92 Km E of Acerra (59573 inhabitants)
94 Km SW of Andria (100440 inhabitants)
96 Km W of Altamura (70396 inhabitants)
97 Km E of Afragola (65057 inhabitants)
98 Km E of Casoria (77642 inhabitants)
99 Km SW of Barletta (94814 inhabitants)
99 Km W of Matera (60436 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 2.0 2023-08-16
09:05:18		 40.7068 15.4227 6 2023-08-16
09:17:06		 Sala Sismica INGV-Roma 120177601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-16 09:05:18 ± 0.07
Latitude 40.7068 ± 0.0045
Longitude 15.4227 ± 0.0059
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120177601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 487
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 31
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.91551
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 120177601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-16 09:17:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2023-08-16T09:05:50.08 0.3 undecidable manual S 77 101.6205 50 0.47 58
IV.MRVN.HHZ. 2023-08-16T09:05:43.66 0.6 undecidable manual S 59 75.7686 50 0.95 34
IV.SIRI.HHE. 2023-08-16T09:05:40.44 0.3 undecidable manual S 147 69.2751 50 -0.52 61
IV.AMUR.HHZ. 2023-08-16T09:05:37.36 0.1 undecidable manual P 77 101.6205 50 0.74 70
IV.MCEL.HHZ. 2023-08-16T09:05:36.57 0.6 undecidable manual S 143 53.1024 50 -0.07 46
IV.ACER.HHZ. 2023-08-16T09:05:34.58 0.6 undecidable manual S 78 44.622 50 0.21 46
IV.MRVN.HHZ. 2023-08-16T09:05:33.63 0.6 negative manual P 59 75.7686 50 1 33
IV.SIRI.HHE. 2023-08-16T09:05:30.83 0.1 undecidable manual P 147 69.2751 50 -0.8 73
IV.MGR.HHZ. 2023-08-16T09:05:30.44 0.1 undecidable manual P 170 64.0914 50 -0.39 85
IX.CMP3.EHZ.02 2023-08-16T09:05:30.01 0.6 undecidable manual S 258 29.4483 101 0.71 41
IX.NSC3.EHZ.02 2023-08-16T09:05:29.26 0.6 undecidable manual S 302 29.6481 101 -0.1 48
IV.MTSN.HNZ. 2023-08-16T09:05:29.22 0.1 undecidable manual P 150 56.1993 50 -0.39 86
IV.MCEL.HHZ. 2023-08-16T09:05:29.08 0.1 undecidable manual P 143 53.1024 50 -0.05 93
IV.CDRU.HHZ. 2023-08-16T09:05:28.16 0.6 undecidable manual S 202 26.0517 103 0.01 49
IV.ACER.HHZ. 2023-08-16T09:05:27.81 0.3 negative manual P 78 44.622 50 -0.01 71
IX.SRN3.HHZ.02 2023-08-16T09:05:27.42 0.3 undecidable manual S 173 24.6531 104 -0.26 70
IV.SGTA.HHZ. 2023-08-16T09:05:27.87 0.1 undecidable manual P 354 47.7189 50 -0.44 87
IX.SNR3.EHZ.02 2023-08-16T09:05:27.86 0.6 undecidable manual S 279 19.5693 107 1.88 21
IV.SLCN.HHZ. 2023-08-16T09:05:26.47 0.1 undecidable manual P 153 39.3273 99 -0.38 89
IX.PGN3.HHE. 2023-08-16T09:05:26.93 0.1 undecidable manual P 115 34.8429 100 0.98 72
IV.CAFE.HHZ. 2023-08-16T09:05:26.68 0.1 undecidable manual P 336 38.9277 99 -0.08 95
IX.MNT3.HNN.02 2023-08-16T09:05:26.03 0.1 undecidable manual P 293 37.8288 99 -0.51 87
IV.CMPR.HHE. 2023-08-16T09:05:26.86 0.1 undecidable manual P 193 44.3223 50 -0.92 72
IX.SALI.HNZ. 2023-08-16T09:05:25.07 0.1 undecidable manual P 321 32.0457 100 -0.34 91
IV.VULT.HHZ. 2023-08-16T09:05:25.50 0.1 undecidable manual P 31 31.9458 101 0.12 95
IX.CMP3.EHZ.02 2023-08-16T09:05:25.06 0.1 negative manual P 258 29.4483 101 0.17 95
IX.NSC3.EHZ.02 2023-08-16T09:05:24.54 0.1 undecidable manual P 302 29.6481 101 -0.39 90
IV.SNAL.HHZ. 2023-08-16T09:05:24.91 0.1 undecidable manual P 324 30.1476 101 -0.12 96
IX.SRN3.HHZ.02 2023-08-16T09:05:24.09 0.1 undecidable manual P 173 24.6531 104 0.13 96
IV.CDRU.HHZ. 2023-08-16T09:05:24.09 0.1 undecidable manual P 202 26.0517 103 -0.14 96
IX.CSG3.HNE. 2023-08-16T09:05:24.43 0.6 undecidable manual S 15 12.7761 115 0.66 43
IX.BEL3.HNN. 2023-08-16T09:05:23.41 0.1 undecidable manual P 87 18.0708 108 0.73 82
IX.PST3.HNZ.02 2023-08-16T09:05:23.89 0.1 undecidable manual P 223 22.1556 105 0.43 91
IX.RDM3.HHE. 2023-08-16T09:05:23.49 0.1 undecidable manual P 27 20.9679 106 0.25 95
IX.SNR3.EHZ.02 2023-08-16T09:05:23.32 0.1 undecidable manual P 279 19.5693 107 0.34 93
IX.CLT3.EHN.02 2023-08-16T09:05:23.89 0.1 undecidable manual P 356 21.7671 105 0.49 90
IV.SGO.HNE. 2023-08-16T09:05:23.08 0.1 undecidable manual P 211 18.9699 107 0.23 95
IX.CGG3.HNZ.02 2023-08-16T09:05:23.75 0.1 undecidable manual P 155 20.1687 106 0.67 84
IV.MCRV.HHZ. 2023-08-16T09:05:23.62 0.1 undecidable manual P 292 22.9548 104 -0.01 99
IX.SCL3.EHZ.02 2023-08-16T09:05:22.00 0.6 undecidable manual S 100 7.5813 128 -0.21 49
IX.VDP3.HNE.01 2023-08-16T09:05:22.79 0.1 undecidable manual P 132 16.872 109 0.33 94
IX.COL3.HHZ.02 2023-08-16T09:05:22.76 0.6 undecidable manual S 254 8.0808 126 0.41 47
IX.COL3.HHZ.02 2023-08-16T09:05:21.25 0.1 positive manual P 254 8.0808 126 0.37 94
IX.CSG3.HNE. 2023-08-16T09:05:21.65 0.1 undecidable manual P 15 12.7761 115 -0.05 100
IX.SFL3.HNN.01 2023-08-16T09:05:21.93 0.1 undecidable manual P 55 15.873 110 -0.35 93
IV.MRLC.HHN. 2023-08-16T09:05:21.52 0.6 undecidable manual S 45 7.7811 127 -0.76 41
IX.VDS3.HNZ.01 2023-08-16T09:05:20.48 0.3 undecidable manual S 5 3.7962 147 -0.83 61
IV.MRLC.HHN. 2023-08-16T09:05:20.39 0.1 undecidable manual P 45 7.7811 127 -0.45 93
IX.SCL3.EHZ.02 2023-08-16T09:05:20.53 0.1 negative manual P 100 7.5813 128 -0.27 96
IX.VDS3.HNZ.01 2023-08-16T09:05:19.64 0.1 undecidable manual P 5 3.7962 147 -0.64 87
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HNE.01 ML:2.8 0.012350000000000002 0.18 AML other m 2023-08-16T09:05:23.82
IX.COL3.HHN.02 ML:2.5 0.006885 0.14 AML other m 2023-08-16T09:05:23.91
IX.COL3.HNN.01 ML:2.4 0.004804999999999999 0.46 AML other m 2023-08-16T09:05:24.39
IX.COL3.HHE.02 ML:2.8 0.01183 1.72 AML other m 2023-08-16T09:05:26.05
IX.SNR3.EHN.02 ML:2.4 0.001895 1.44 AML other m 2023-08-16T09:05:28.83
IX.SNR3.EHE.02 ML:2.2 0.001395 0.6 AML other m 2023-08-16T09:05:29.41
IX.SNR3.HNE.01 ML:2.3 0.0016600000000000002 0.6 AML other m 2023-08-16T09:05:29.41
IX.SRN3.HHN.02 ML:2.4 0.00168 0.48 AML other m 2023-08-16T09:05:30.36
IX.SNR3.HNN.01 ML:2.4 0.00204 0.26 AML other m 2023-08-16T09:05:30.06
IX.CMP3.EHN.02 ML:2.5 0.00155 0.24 AML other m 2023-08-16T09:05:30.79
IV.CDRU.HHN. ML:1.5 0.0002045 0.6 AML other m 2023-08-16T09:05:31.41
IV.CDRU.HHE. ML:1.8 0.0003675 0.66 AML other m 2023-08-16T09:05:32.07
IX.CMP3.EHE.02 ML:2.2 0.0007615 0.62 AML other m 2023-08-16T09:05:32.27
IX.SRN3.HHE.02 ML:2.2 0.0009795000000000001 1.32 AML other m 2023-08-16T09:05:32.32
IX.NSC3.HNE.01 ML:2.1 0.000608 1.36 AML other m 2023-08-16T09:05:32.11
IX.NSC3.EHE.02 ML:2.0 0.0005430000000000001 0.28 AML other m 2023-08-16T09:05:33.11
IX.NSC3.HNN.01 ML:1.9 0.000431 0.28 AML other m 2023-08-16T09:05:33.69
IX.NSC3.EHN.02 ML:1.9 0.00039049999999999995 0.3 AML other m 2023-08-16T09:05:33.55
IV.SLCN.HHN. ML:2.0 0.0003735 0.42 AML other m 2023-08-16T09:05:35.60
IV.ACER.HHN. ML:2.2 0.00046 0.54 AML other m 2023-08-16T09:05:35.68
IV.ACER.HNN. ML:2.2 0.000448 0.52 AML other m 2023-08-16T09:05:35.69
IV.ACER.HHE. ML:2.0 0.0003145 1.48 AML other m 2023-08-16T09:05:37.09
IV.ACER.HNE. ML:2.0 0.000299 1.46 AML other m 2023-08-16T09:05:37.83
IV.CAFE.HHN. ML:1.7 0.000185 0.44 AML other m 2023-08-16T09:05:38.16
IV.CAFE.HNN. ML:1.7 0.00019 0.46 AML other m 2023-08-16T09:05:38.16
IV.SLCN.HNN. ML:2.1 0.00044050000000000003 0.88 AML other m 2023-08-16T09:05:39.11
IV.SNAL.HHE. ML:1.9 0.00041749999999999996 1.14 AML other m 2023-08-16T09:05:39.69
IV.SNAL.HHN. ML:2.0 0.00046199999999999995 1.3 AML other m 2023-08-16T09:05:39.96
IV.CAFE.HHE. ML:1.9 0.00026349999999999995 0.36 AML other m 2023-08-16T09:05:40.24
IV.CAFE.HNE. ML:1.8 0.0002595 0.36 AML other m 2023-08-16T09:05:40.24
IV.SLCN.HHE. ML:2.3 0.0007855 1.4 AML other m 2023-08-16T09:05:40.09
IV.SLCN.HNE. ML:2.3 0.0007344999999999999 1.42 AML other m 2023-08-16T09:05:40.09
IV.SGTA.HHN. ML:1.6 0.000125 0.46 AML other m 2023-08-16T09:05:41.27
IV.VULT.HHE. ML:1.9 0.0003565 0.68 AML other m 2023-08-16T09:05:42.15
IV.VULT.HHN. ML:2.0 0.000546 0.46 AML other m 2023-08-16T09:05:42.64
IV.MCEL.HHE. ML:1.7 0.00011399999999999999 0.66 AML other m 2023-08-16T09:05:43.00
IV.SGTA.HHE. ML:1.8 0.00015999999999999999 1.52 AML other m 2023-08-16T09:05:43.80
IV.MRVN.HHE. ML:1.6 0.0000672 0.54 AML other m 2023-08-16T09:05:47.40
IV.MGR.HHN. ML:1.7 0.0000897 0.46 AML other m 2023-08-16T09:05:47.68
IV.MRVN.HHN. ML:1.6 0.0000546 1 AML other m 2023-08-16T09:05:47.91
IV.MGR.HHE. ML:1.7 0.0000925 0.42 AML other m 2023-08-16T09:05:47.73
IV.MCEL.HHN. ML:1.8 0.00017099999999999998 0.52 AML other m 2023-08-16T09:05:50.82
IV.AMUR.HHN. ML:1.7 0.00004355 0.62 AML other m 2023-08-16T09:05:51.64
IV.AMUR.HHE. ML:1.7 0.0000459 0.4 AML other m 2023-08-16T09:05:54.75
IX.SCL3.EHE.02 ML:0.0 0.014809995 0.0832 AML other m 2023-08-16T09:05:22.66
IX.SCL3.EHN.02 ML:0.0 0.0159435 0.16 AML other m 2023-08-16T09:05:22.64
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