Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 18-05-2023 and time 06:52:05 (Italy) in region 2 km SW Baragiano (PZ)

A magnitude ML 1.8 earthquake occured in region: 2 km SW Baragiano (PZ), on

  • 18-05-2023 04:52:05 (UTC)
  • 18-05-2023 06:52:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.6690, 15.5840 at 9 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
Baragiano PZ 2 2671 2671
Picerno PZ 6 5985 8656
Balvano PZ 6 1830 10486
Ricigliano SA 8 1144 11630
Ruoti PZ 10 3579 15209
Vietri di Potenza PZ 10 2832 18041
Bella PZ 11 5171 23212
Savoia di Lucania PZ 11 1127 24339
Tito PZ 12 7332 31671
Muro Lucano PZ 13 5497 37168
Romagnano al Monte SA 13 368 37536
Avigliano PZ 13 11577 49113
Caggiano SA 13 2765 51878
Salvitelle SA 14 560 52438
Sant'Angelo Le Fratte PZ 14 1429 53867
Satriano di Lucania PZ 14 2374 56241
San Gregorio Magno SA 16 4286 60527
San Fele PZ 17 3004 63531
Pertosa SA 18 690 64221
Auletta SA 18 2336 66557
Castelgrande PZ 18 943 67500
Buccino SA 19 5047 72547
Polla SA 19 5279 77826
Filiano PZ 19 2926 80752
Potenza PZ 19 67122 147874
Pignola PZ 20 6962 154836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Potenza (67122 inhabitants)
51 Km E of Battipaglia (50786 inhabitants)
70 Km E of Salerno (135261 inhabitants)
72 Km SW of Cerignola (58396 inhabitants)
72 Km E of Avellino (54857 inhabitants)
74 Km E of Cava de' Tirreni (53659 inhabitants)
84 Km W of Altamura (70396 inhabitants)
85 Km SE of Benevento (60091 inhabitants)
86 Km W of Matera (60436 inhabitants)
86 Km SW of Andria (100440 inhabitants)
88 Km S of Foggia (151991 inhabitants)
90 Km E of Scafati (50787 inhabitants)
93 Km E of Castellammare di Stabia (66466 inhabitants)
93 Km SW of Barletta (94814 inhabitants)
97 Km SW of Trani (56217 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 1.8 2023-05-18
04:52:05		 40.6687 15.5838 9 2023-05-18
05:00:25		 Sala Sismica INGV-Roma 117439461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-18 04:52:05 ± 0.13
Latitude 40.6687 ± 0.0063
Longitude 15.5838 ± 0.0119
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117439461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 885
Semi-minor axis of confidence ellipse (meter) 465
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80759
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 117439461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-18 05:00:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOCI.HHZ. 2023-05-18T04:52:26.86 3.0 negative manual P 0.56 0
IV.SGRT.HHZ. 2023-05-18T04:52:25.39 3.0 undecidable manual P -0.49 0
IV.MTSN.HHZ. 2023-05-18T04:52:21.69 0.3 undecidable manual S 162 46.8198 50 1.14 49
IV.AMUR.HHZ. 2023-05-18T04:52:21.25 0.3 undecidable manual P 73 89.6436 50 0.64 58
IV.CMPR.HHZ. 2023-05-18T04:52:20.67 0.3 undecidable manual S 211 45.5211 50 0.46 63
IV.VULT.HHZ. 2023-05-18T04:52:17.00 0.3 undecidable manual S 5 31.8459 105 0.47 66
IV.MIGL.HHZ. 2023-05-18T04:52:17.81 0.3 undecidable manual P 95 72.4719 50 -0.15 67
IV.ACER.HHZ. 2023-05-18T04:52:16.62 0.3 undecidable manual S 66 32.8449 50 -0.21 72
IV.MRVN.HHZ. 2023-05-18T04:52:16.97 0.3 undecidable manual P 50 67.2771 50 -0.19 68
IV.SCHR.EHZ. 2023-05-18T04:52:16.23 0.3 undecidable manual P 141 66.5778 50 -0.82 56
IV.SLCN.HHZ. 2023-05-18T04:52:16.95 0.3 undecidable manual S 172 31.1466 106 0.65 64
IV.CDRU.HHZ. 2023-05-18T04:52:15.88 0.3 undecidable manual S 230 30.747 106 -0.28 72
IV.SIRI.HHZ. 2023-05-18T04:52:15.32 0.3 undecidable manual P 156 58.9965 50 -0.57 63
IV.MTSN.HHZ. 2023-05-18T04:52:14.13 0.1 undecidable manual P 162 46.8198 50 0.13 95
IV.MCEL.HHZ. 2023-05-18T04:52:13.02 0.1 undecidable manual P 154 42.3243 50 -0.29 93
IX.SRN3.HHZ.02 2023-05-18T04:52:13.88 0.3 undecidable manual S 208 22.8549 111 0.33 73
IV.CMPR.HHZ. 2023-05-18T04:52:13.18 0.3 undecidable manual P 211 45.5211 50 -0.63 65
IV.PTRP.HHZ. 2023-05-18T04:52:13.74 0.3 undecidable manual P 112 43.4232 50 0.26 70
IV.SNAL.HHZ. 2023-05-18T04:52:13.73 0.6 undecidable manual P 312 42.4242 50 0.4 44
IV.PALZ.HHZ. 2023-05-18T04:52:12.88 0.3 undecidable manual P 46 43.9227 50 -0.68 62
IV.VULT.HHZ. 2023-05-18T04:52:12.06 0.3 undecidable manual P 5 31.8459 105 0.38 69
IV.SLCN.HHZ. 2023-05-18T04:52:11.62 0.1 undecidable manual P 172 31.1466 106 0.07 99
IV.ACER.HHZ. 2023-05-18T04:52:11.87 0.1 undecidable manual P 66 32.8449 50 0.01 100
IV.CDRU.HHZ. 2023-05-18T04:52:11.01 0.1 undecidable manual P 230 30.747 106 -0.46 92
IV.MRLC.HHZ. 2023-05-18T04:52:10.24 0.3 undecidable manual S 321 12.5763 125 -0.14 75
IX.SRN3.HHZ.02 2023-05-18T04:52:09.84 0.3 undecidable manual P 208 22.8549 111 -0.12 74
IV.MRLC.HHZ. 2023-05-18T04:52:08.48 0.1 undecidable manual P 321 12.5763 125 0.35 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.SRN3.HHN.02 ML:2.2 0.001145 0.36 AML other m 2023-05-18T04:52:15.10
IX.SRN3.HNN.01 ML:2.2 0.001123 0.36 AML other m 2023-05-18T04:52:15.10
IX.SRN3.HHE.02 ML:2.0 0.0007239999999999999 0.3 AML other m 2023-05-18T04:52:15.33
IX.SRN3.HNE.01 ML:2.1 0.0007985 1.24 AML other m 2023-05-18T04:52:15.33
IV.MRLC.HNN. ML:1.4 0.0003025 0.52 AML other m 2023-05-18T04:52:15.59
IV.MRLC.HHN. ML:1.8 0.0006535 0.54 AML other m 2023-05-18T04:52:15.59
IV.MRLC.HHE. ML:1.6 0.000509 0.52 AML other m 2023-05-18T04:52:16.30
IV.MRLC.HNE. ML:1.3 0.000244 0.52 AML other m 2023-05-18T04:52:16.30
IV.CDRU.HHE. ML:1.5 0.00014250000000000002 0.2 AML other m 2023-05-18T04:52:18.30
IV.VULT.HHE. ML:1.6 0.00017749999999999998 1.2 AML other m 2023-05-18T04:52:18.30
IV.CDRU.HHN. ML:1.3 0.00009939999999999999 1.08 AML other m 2023-05-18T04:52:19.23
IV.SLCN.HHE. ML:2.1 0.0005585 0.52 AML other m 2023-05-18T04:52:21.98
IV.SLCN.HNE. ML:2.0 0.0005035 0.5 AML other m 2023-05-18T04:52:21.98
IV.PTRP.HHE. ML:1.6 0.000121 0.42 AML other m 2023-05-18T04:52:24.04
IV.MTSN.HHN. ML:1.8 0.00016549999999999998 0.3 AML other m 2023-05-18T04:52:24.93
IV.MTSN.HNN. ML:1.8 0.00016599999999999997 0.3 AML other m 2023-05-18T04:52:24.93
IV.SIRI.HHN. ML:1.7 0.00010625 1.38 AML other m 2023-05-18T04:52:24.85
IV.SIRI.HNN. ML:1.6 0.00009470000000000001 1.38 AML other m 2023-05-18T04:52:24.86
IV.SLCN.HHN. ML:1.8 0.0003185 1.12 AML other m 2023-05-18T04:52:25.61
IV.SLCN.HNN. ML:1.9 0.0003785 1.16 AML other m 2023-05-18T04:52:25.04
IV.VULT.HHN. ML:1.7 0.000215 1.06 AML other m 2023-05-18T04:52:26.24
IV.SIRI.HNE. ML:1.8 0.0001275 0.24 AML other m 2023-05-18T04:52:27.76
IV.SIRI.HHE. ML:1.8 0.000129 0.24 AML other m 2023-05-18T04:52:27.64
IV.MTSN.HNE. ML:1.7 0.0001409 0.4 AML other m 2023-05-18T04:52:28.09
IV.MTSN.HHE. ML:1.7 0.00014900000000000002 1.64 AML other m 2023-05-18T04:52:28.10
IV.PTRP.HHN. ML:1.6 0.00011385 1.46 AML other m 2023-05-18T04:52:31.84
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