Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-04-2023 and time 23:20:19 (Italy) in region 1 km W Muro Lucano (PZ)

A magnitude ML 1.8 earthquake occured in region: 1 km W Muro Lucano (PZ), on

  • 25-04-2023 21:20:19 (UTC)
  • 25-04-2023 23:20:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7570, 15.4720 at 8 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Muro Lucano PZ 1 5497 5497
Castelgrande PZ 5 943 6440
Bella PZ 6 5171 11611
San Fele PZ 9 3004 14615
Ricigliano SA 10 1144 15759
Rapone PZ 10 990 16749
Pescopagano PZ 11 1910 18659
Ruvo del Monte PZ 12 1083 19742
Balvano PZ 12 1830 21572
San Gregorio Magno SA 13 4286 25858
Sant'Andrea di Conza AV 13 1539 27397
Baragiano PZ 13 2671 30068
Santomenna SA 14 443 30511
Castelnuovo di Conza SA 14 619 31130
Laviano SA 14 1438 32568
Romagnano al Monte SA 15 368 32936
Colliano SA 16 3638 36574
Conza della Campania AV 16 1373 37947
Calitri AV 16 4666 42613
Buccino SA 17 5047 47660
Valva SA 17 1643 49303
Vietri di Potenza PZ 18 2832 52135
Ruoti PZ 18 3579 55714
Cairano AV 18 326 56040
Salvitelle SA 18 560 56600
Palomonte SA 19 3985 60585
Picerno PZ 19 5985 66570

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km W of Potenza (67122 inhabitants)
44 Km E of Battipaglia (50786 inhabitants)
60 Km E of Avellino (54857 inhabitants)
61 Km E of Salerno (135261 inhabitants)
65 Km E of Cava de' Tirreni (53659 inhabitants)
67 Km SW of Cerignola (58396 inhabitants)
71 Km SE of Benevento (60091 inhabitants)
79 Km S of Foggia (151991 inhabitants)
80 Km E of Scafati (50787 inhabitants)
84 Km E of Castellammare di Stabia (66466 inhabitants)
87 Km SW of Andria (100440 inhabitants)
91 Km W of Altamura (70396 inhabitants)
92 Km SW of Barletta (94814 inhabitants)
93 Km E of Torre del Greco (86275 inhabitants)
94 Km E of Portici (55274 inhabitants)
95 Km E of Acerra (59573 inhabitants)
95 Km E of Ercolano (53709 inhabitants)
96 Km W of Matera (60436 inhabitants)
98 Km SW of Trani (56217 inhabitants)
99 Km E of Afragola (65057 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 1.8 2023-04-25
21:20:19		 40.7572 15.4723 8 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124657571
Reviewed
Rev100 		ML 1.9 2023-04-25
21:20:19		 40.7572 15.4757 8 2023-04-25
21:27:27		 Sala Sismica INGV-Roma 116751391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 21:20:19 ± 0.1
Latitude 40.7572 ± 0.0045
Longitude 15.4723 ± 0.0059
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124657571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 528
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.01259
Epicentral distance of station farthest from the epicenter (degree) 0.38581
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 124657571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-30 13:32:12

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 116751391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 21:27:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
5H.FR05.EHN. 2023-04-25T21:20:31.39 0.3 undecidable manual S 325 31.2465 104 0.66 61
IV.MCRV.HHZ. 2023-04-25T21:20:29.18 0.6 undecidable manual S 276 25.6521 106 0.3 46
IV.ACER.HHZ. 2023-04-25T21:20:27.18 0.3 undecidable manual P 85 39.627 50 -0.37 66
IX.SSB3.HNE.02 2023-04-25T21:20:27.47 1.0 undecidable manual P 330 41.0256 50 -0.3 22
IV.SGTA.HNZ. 2023-04-25T21:20:27.87 0.3 undecidable manual P 348 42.8238 50 -0.18 68
IX.PGN3.HHN.02 2023-04-25T21:20:26.98 0.3 undecidable manual P 127 34.1436 103 0.39 66
IX.STN3.HNZ.02 2023-04-25T21:20:26.18 0.3 undecidable manual P 149 29.3484 105 0.52 64
IV.PZUN.HHZ. 2023-04-25T21:20:26.50 1.0 undecidable manual P 114 30.747 104 0.58 21
IV.CAFE.HHZ. 2023-04-25T21:20:26.89 0.3 undecidable manual P 327 35.9418 102 -0.05 71
IV.CDRU.HNZ. 2023-04-25T21:20:25.84 0.6 undecidable manual P 206 32.8449 103 -0.5 43
5H.FR05.EHN. 2023-04-25T21:20:25.74 0.3 undecidable manual P 325 31.2465 104 -0.27 68
IV.VULT.HHZ. 2023-04-25T21:20:25.02 0.3 undecidable manual P 29 25.0527 107 0.2 70
IX.SRN3.HNE.02 2023-04-25T21:20:25.92 0.6 undecidable manual P 182 30.1476 104 0.12 47
IX.RDM3.HNE.02 2023-04-25T21:20:25.65 0.6 undecidable manual S 22 14.1747 118 0.49 45
IX.BEL3.HNZ.01 2023-04-25T21:20:25.74 0.6 undecidable manual S 109 14.5743 118 0.46 45
IV.SNAL.HHZ. 2023-04-25T21:20:25.40 0.3 undecidable manual P 310 28.9488 105 -0.17 70
IV.MCRV.HHZ. 2023-04-25T21:20:24.51 0.3 undecidable manual P 276 25.6521 106 -0.44 66
IX.SNR3.EHZ. 2023-04-25T21:20:24.78 0.3 undecidable manual P 264 23.6541 108 0.23 70
IV.SGO.HHE. 2023-04-25T21:20:24.78 0.6 undecidable manual P 213 25.8519 106 -0.2 46
IX.SFL3.HNZ.01 2023-04-25T21:20:23.89 0.6 undecidable manual S 68 9.5793 129 0.08 49
IX.CLT3.HNZ.02 2023-04-25T21:20:23.75 0.3 undecidable manual P 341 17.1717 114 0.41 68
IX.SCL3.EHZ. 2023-04-25T21:20:23.57 0.6 undecidable manual S 155 7.5813 135 0.25 47
IX.VDS3.HNN.01 2023-04-25T21:20:22.93 0.3 undecidable manual S 245 4.1958 151 0.33 70
IX.RDM3.HNE.02 2023-04-25T21:20:22.97 0.3 undecidable manual P 22 14.1747 118 0.17 72
IX.COL3.HHE.02 2023-04-25T21:20:22.99 0.3 undecidable manual P 237 14.2746 118 0.18 71
IX.BEL3.HNZ.01 2023-04-25T21:20:22.96 0.6 undecidable manual P 109 14.5743 118 0.09 49
IV.MRLC.HNZ. 2023-04-25T21:20:21.58 0.3 undecidable manual S 94 1.3986 170 -0.68 63
IX.SCL3.EHZ. 2023-04-25T21:20:21.68 0.3 undecidable manual P 155 7.5813 135 -0.06 74
IX.VDS3.HNN.01 2023-04-25T21:20:21.30 0.1 undecidable manual P 245 4.1958 151 -0.02 100
IX.SFL3.HNZ.01 2023-04-25T21:20:21.54 0.1 undecidable manual P 68 9.5793 129 -0.49 90
IX.CSG3.HNZ.01 2023-04-25T21:20:21.25 0.3 undecidable manual P 354 6.7932 138 -0.37 69
IV.MRLC.HNZ. 2023-04-25T21:20:20.65 0.1 undecidable manual P 94 1.3986 170 -0.48 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.CSG3.HNN.01 ML:1.9 0.0013562696999999998 0.2432 AML other m 2023-04-25T21:20:23.46
IX.SCL3.HNE.01 ML:2.1 0.0023302474999999994 0.128 AML other m 2023-04-25T21:20:23.74
IX.CSG3.HNE.01 ML:2.2 0.00327 0.42 AML other m 2023-04-25T21:20:24.32
IX.SCL3.EHN.02 ML:2.3 0.0034366744999999995 0.128 AML other m 2023-04-25T21:20:24.86
IX.SCL3.HNN.01 ML:2.3 0.0036555815 0.128 AML other m 2023-04-25T21:20:24.86
IX.SCL3.EHE.02 ML:2.1 0.00236371 0.2176 AML other m 2023-04-25T21:20:25.22
IX.SNR3.EHE.02 ML:1.8 0.00036723324999999994 0.4352 AML other m 2023-04-25T21:20:30.06
IV.MCRV.HHE. ML:1.6 0.00023717115 0.1792 AML other m 2023-04-25T21:20:30.92
IV.MCRV.HHN. ML:1.8 0.00033581015 0.2944 AML other m 2023-04-25T21:20:31.61
IX.SNR3.EHN.02 ML:2.0 0.0006493721999999999 0.2176 AML other m 2023-04-25T21:20:32.87
IX.SNR3.HNN.01 ML:2.0 0.0006779409000000001 0.2176 AML other m 2023-04-25T21:20:32.87
IV.SNAL.HNE. ML:1.4 0.00013661545 0.2304 AML other m 2023-04-25T21:20:32.95
IX.SNR3.HNE.01 ML:1.8 0.000421878 0.4096 AML other m 2023-04-25T21:20:33.79
IV.VULT.HHE. ML:1.7 0.0002800359 0.4608 AML other m 2023-04-25T21:20:34.87
IV.VULT.HHN. ML:2.0 0.0005563557 0.6272 AML other m 2023-04-25T21:20:35.99
IV.VULT.HNN. ML:2.0 0.00062417545 0.64 AML other m 2023-04-25T21:20:35.99
IV.ACER.HHN. ML:1.7 0.0001730477 0.576 AML other m 2023-04-25T21:20:36.40
IV.ACER.HNN. ML:1.7 0.00017756340000000002 0.5632 AML other m 2023-04-25T21:20:36.41
IV.ACER.HHE. ML:1.8 0.00020261805 0.3456 AML other m 2023-04-25T21:20:37.57
IV.ACER.HNE. ML:1.7 0.0001967807 0.4096 AML other m 2023-04-25T21:20:38.24
IV.VULT.HNE. ML:1.7 0.00029876675 0.3584 AML other m 2023-04-25T21:20:39.23
IV.SNAL.HHE. ML:1.6 0.00019 0.92 AML other m 2023-04-25T21:20:40.90
IV.SNAL.HNN. ML:1.6 0.0002090299 0.7808 AML other m 2023-04-25T21:20:40.47
IV.SNAL.HHN. ML:1.5 0.00016667290000000001 0.6784 AML other m 2023-04-25T21:20:40.51
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