Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-04-2018 and time 17:11:56 (UTC) in region 4 km SW Castelgrande (PZ)

A magnitude ML 2.1 earthquake occured in region: 4 km SW Castelgrande (PZ), on

  • 23-04-2018 17:11:56 (UTC)
  • 23-04-2018 19:11:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7480, 15.4170 at 10 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
Castelgrande PZ 5 943 943
Muro Lucano PZ 6 5497 6440
Pescopagano PZ 10 1910 8350
Laviano SA 10 1438 9788
San Gregorio Magno SA 10 4286 14074
Bella PZ 10 5171 19245
Santomenna SA 11 443 19688
Ricigliano SA 11 1144 20832
Colliano SA 11 3638 24470
Castelnuovo di Conza SA 11 619 25089
Sant'Andrea di Conza AV 11 1539 26628
Valva SA 12 1643 28271
Rapone PZ 13 990 29261
San Fele PZ 13 3004 32265
Romagnano al Monte SA 13 368 32633
Balvano PZ 13 1830 34463
Buccino SA 14 5047 39510
Conza della Campania AV 14 1373 40883
Palomonte SA 14 3985 44868
Ruvo del Monte PZ 15 1083 45951
Oliveto Citra SA 16 3802 49753
Baragiano PZ 17 2671 52424
Cairano AV 17 326 52750
Calabritto AV 17 2391 55141
Calitri AV 17 4666 59807
Caposele AV 18 3483 63290
Salvitelle SA 18 560 63850
Senerchia AV 18 842 64692
Teora AV 18 1537 66229
Vietri di Potenza PZ 18 2832 69061
Contursi Terme SA 18 3394 72455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Potenza (67122 inhabitants)
40 Km E of Battipaglia (50786 inhabitants)
55 Km E of Avellino (54857 inhabitants)
56 Km E of Salerno (135261 inhabitants)
60 Km E of Cava de' Tirreni (53659 inhabitants)
68 Km SE of Benevento (60091 inhabitants)
71 Km SW of Cerignola (58396 inhabitants)
75 Km E of Scafati (50787 inhabitants)
79 Km E of Castellammare di Stabia (66466 inhabitants)
80 Km S of Foggia (151991 inhabitants)
89 Km E of Torre del Greco (86275 inhabitants)
90 Km E of Portici (55274 inhabitants)
90 Km E of Ercolano (53709 inhabitants)
91 Km E of Acerra (59573 inhabitants)
91 Km SW of Andria (100440 inhabitants)
95 Km E of Afragola (65057 inhabitants)
96 Km W of Altamura (70396 inhabitants)
96 Km E of Casoria (77642 inhabitants)
96 Km SW of Barletta (94814 inhabitants)
98 Km E of Caserta (76326 inhabitants)
99 Km E of Napoli (974074 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 2.1 2018-04-23
17:11:56		 40.748 15.4168 10 2019-04-24
14:49:44		 Bollettino Sismico Italiano INGV 62295231
Reviewed
Rev100 		ML 2.1 2018-04-23
17:11:56		 40.7462 15.4238 9 2018-04-23
17:24:20		 Sala Sismica INGV-Roma 56007651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-23 17:11:56 ± 0.07
Latitude 40.7480 ± 0.0045
Longitude 15.4168 ± 0.0059
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 62295231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 466
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
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 50
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.03512
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 56007651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-23 17:24:20

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 62295231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-10-25 09:15:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PARC.HHZ. 2018-04-23T17:13:42.02 3.0 undecidable manual Sn 3.13 0
IV.MURB.HHZ. 2018-04-23T17:13:35.21 3.0 undecidable manual Sg 6.76 0
IV.MPG.SHZ. 2018-04-23T17:13:18.94 3.0 undecidable manual Sn -3.53 0
AC.PUK.HHZ. 2018-04-23T17:12:59.23 3.0 undecidable manual Pg 7.27 0
IV.OFFI.HHZ. 2018-04-23T17:12:42.54 3.0 undecidable manual Pg 4.97 0
IV.PP3.EHZ. 2018-04-23T17:12:42.42 3.0 undecidable manual Pn -0.8 0
IV.MILZ.HHZ. 2018-04-23T17:12:39.46 3.0 undecidable manual Pg 2.34 0
IV.SGRT.HHZ. 2018-04-23T17:12:31.15 0.6 undecidable manual S 14 114.8961 50 1.18 28
IV.MRVN.HHZ. 2018-04-23T17:12:20.48 0.6 undecidable manual S 62 73.9704 50 1.45 26
IV.SGRT.HHZ. 2018-04-23T17:12:15.85 0.1 undecidable manual P 14 114.8961 50 -0.03 82
IV.MELA.HHZ. 2018-04-23T17:12:14.78 3.0 undecidable manual P -0.14 0
IV.AMUR.HHZ. 2018-04-23T17:12:14.10 0.1 undecidable manual P 80 101.2209 50 0.34 79
IV.CMPR.HHN. 2018-04-23T17:12:13.00 0.6 undecidable manual S 191 48.618 50 0.72 39
IV.SGTA.HHZ. 2018-04-23T17:12:11.25 0.6 undecidable manual S 354 43.1235 50 0.44 43
IV.PAOL.HHZ. 2018-04-23T17:12:10.39 3.0 undecidable manual P 0.22 0
IV.ACER.HHZ. 2018-04-23T17:12:10.98 0.1 undecidable manual S 84 44.4222 50 -0.16 92
IV.MRVN.HHZ. 2018-04-23T17:12:09.58 0.6 undecidable manual P 62 73.9704 50 0.02 45
IV.SIRI.HHZ. 2018-04-23T17:12:08.84 0.1 undecidable manual P 149 73.371 50 -0.64 77
IV.MCEL.HHZ. 2018-04-23T17:12:08.12 0.1 undecidable manual P 145 57.0984 50 1.16 62
IV.CAFE.HHZ. 2018-04-23T17:12:08.94 0.3 undecidable manual S 334 34.5432 50 0.43 66
IV.MGR.HHE. 2018-04-23T17:12:08.12 0.1 undecidable manual P 170 68.6757 50 -0.63 77
IV.PTRP.HHZ. 2018-04-23T17:12:07.82 0.1 undecidable manual P 115 59.7957 50 0.44 84
IV.MTSN.HHZ. 2018-04-23T17:12:07.20 0.1 undecidable manual P 152 60.3951 50 -0.28 87
IX.RSF3.HNE.02 2018-04-23T17:12:07.81 0.3 undecidable manual S 320 31.3464 50 0.15 70
IV.VULT.HHZ. 2018-04-23T17:12:06.57 0.3 undecidable manual S 36 28.3494 50 -0.3 69
IX.NSC3.HHZ.02 2018-04-23T17:12:06.20 0.3 undecidable manual S 294 27.0507 50 -0.31 69
IV.PALZ.HHZ. 2018-04-23T17:12:05.44 0.1 undecidable manual P 64 50.5161 50 -0.51 84
IV.CMPR.HHN. 2018-04-23T17:12:05.36 0.1 undecidable manual P 191 48.618 50 -0.3 88
IV.MCRV.HHZ. 2018-04-23T17:12:04.59 0.1 undecidable manual S 280 21.2676 116 -0.2 95
IV.SGTA.HHZ. 2018-04-23T17:12:04.77 0.1 undecidable manual P 354 43.1235 50 -0.04 94
IV.SLCN.HHZ. 2018-04-23T17:12:04.79 0.1 undecidable manual P 155 43.7229 50 -0.11 93
IX.SSB3.HNE.02 2018-04-23T17:12:04.55 0.6 undecidable manual P 337 39.9267 50 0.24 45
IV.ACER.HHZ. 2018-04-23T17:12:04.73 0.1 undecidable manual P 84 44.4222 50 -0.27 89
BA.PZUN.HHZ. 2018-04-23T17:12:03.94 0.1 undecidable manual P 109 34.743 50 0.43 88
IV.CAFE.HHZ. 2018-04-23T17:12:03.57 0.1 undecidable manual P 334 34.5432 50 0.08 95
IX.PST3.HHZ.02 2018-04-23T17:12:02.19 0.3 undecidable manual P 215 25.3524 50 0.12 72
IX.RSF3.HNE.02 2018-04-23T17:12:02.62 0.3 undecidable manual P 320 31.3464 50 -0.38 67
IX.COL3.HHE.02 2018-04-23T17:12:02.31 0.3 undecidable manual S 227 9.879 136 0.76 61
IV.VULT.HHZ. 2018-04-23T17:12:02.21 0.1 positive manual P 36 28.3494 50 -0.33 91
IX.SRN3.HNE.02 2018-04-23T17:12:02.53 0.3 undecidable manual P 173 29.2485 50 -0.14 71
IV.MCRV.HHZ. 2018-04-23T17:12:01.20 0.1 positive manual P 280 21.2676 116 -0.14 96
IX.SNR3.HHE.02 2018-04-23T17:12:01.10 0.1 undecidable manual P 266 18.87 118 0.18 95
IX.LIO3.HHZ.02 2018-04-23T17:12:01.98 0.3 undecidable manual P 310 25.8519 50 -0.16 71
IX.NSC3.HHZ.02 2018-04-23T17:12:01.97 0.1 positive manual P 294 27.0507 50 -0.37 90
IX.RDM3.HHN.02 2018-04-23T17:12:00.96 0.3 undecidable manual P 35 17.3715 120 0.31 70
IV.MRLC.HHZ. 2018-04-23T17:12:00.40 0.1 undecidable manual S 81 6.0939 149 -0.34 94
IX.SCL3.HNE.02 2018-04-23T17:11:59.60 0.3 undecidable manual P 126 9.879 136 0.14 73
IX.COL3.HHE.02 2018-04-23T17:11:59.79 0.1 positive manual P 227 9.879 136 0.32 94
IX.CSG3.HNE.01 2018-04-23T17:11:59.27 0.1 undecidable manual P 27 8.6802 139 -0.03 100
IV.MRLC.HHZ. 2018-04-23T17:11:58.82 0.1 negative manual P 81 6.0939 149 -0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HHE. ML:2.8 0.010960000000000001 0.48 AML other m 2018-04-23T17:12:00.72
IV.MRLC.HHN. ML:3.0 0.0152 0.28 AML other m 2018-04-23T17:12:00.68
IV.MRLC.HNN. ML:2.6 0.006665 0.26 AML other m 2018-04-23T17:12:00.68
IV.MRLC.HNE. ML:2.6 0.0055650000000000005 0.44 AML other m 2018-04-23T17:12:00.71
IV.MCRV.HHN. ML:2.6 0.00304 0.2 AML other m 2018-04-23T17:12:05.50
IV.MCRV.HHE. ML:2.5 0.002215 0.98 AML other m 2018-04-23T17:12:05.87
IV.VULT.HNN. ML:2.2 0.0008885000000000001 1.4 AML other m 2018-04-23T17:12:06.80
IV.VULT.HHN. ML:2.2 0.0009205000000000001 1.38 AML other m 2018-04-23T17:12:06.80
IV.CAFE.HNN. ML:1.9 0.0003105 0.62 AML other m 2018-04-23T17:12:10.41
IV.CAFE.HHN. ML:1.9 0.0003135 0.58 AML other m 2018-04-23T17:12:10.41
IV.CAFE.HNE. ML:1.9 0.000331 0.62 AML other m 2018-04-23T17:12:11.07
BA.PZUN.HNN. ML:2.0 0.00042 0.34 AML other m 2018-04-23T17:12:11.42
BA.PZUN.HHN. ML:2.0 0.00040449999999999997 0.34 AML other m 2018-04-23T17:12:11.43
IV.ACER.HNN. ML:2.3 0.0006345000000000001 0.6 AML other m 2018-04-23T17:12:11.40
IV.ACER.HHN. ML:2.3 0.0006125000000000001 0.56 AML other m 2018-04-23T17:12:11.41
IV.ACER.HNE. ML:2.3 0.0005555 0.4 AML other m 2018-04-23T17:12:11.72
IV.ACER.HHE. ML:2.3 0.0005735 0.4 AML other m 2018-04-23T17:12:11.52
IV.VULT.HHE. ML:2.1 0.0007444999999999999 1.12 AML other m 2018-04-23T17:12:14.88
IV.VULT.HNE. ML:2.1 0.0007030000000000001 1.12 AML other m 2018-04-23T17:12:14.88
IV.SGTA.HHN. ML:1.6 0.000135 0.3 AML other m 2018-04-23T17:12:16.65
IV.PALZ.HHE. ML:1.9 0.0002275 1.28 AML other m 2018-04-23T17:12:17.98
IV.SLCN.HHN. ML:2.0 0.000327 1.48 AML other m 2018-04-23T17:12:18.83
IV.CAFE.HHE. ML:1.9 0.000312 0.64 AML other m 2018-04-23T17:12:18.87
BA.PZUN.HNE. ML:1.9 0.00034250000000000003 1.34 AML other m 2018-04-23T17:12:19.16
BA.PZUN.HHE. ML:1.9 0.000302 0.32 AML other m 2018-04-23T17:12:19.16
IV.MCEL.HHE. ML:1.8 0.000142 0.5 AML other m 2018-04-23T17:12:20.25
IV.SGTA.HHE. ML:1.7 0.0001675 0.5 AML other m 2018-04-23T17:12:20.58
IV.MRVN.HHE. ML:2.3 0.00029499999999999996 0.22 AML other m 2018-04-23T17:12:21.19
IV.MCEL.HNE. ML:1.8 0.00013700000000000002 0.64 AML other m 2018-04-23T17:12:21.70
IV.SLCN.HHE. ML:2.3 0.000616 0.54 AML other m 2018-04-23T17:12:21.68
IV.MRVN.HHN. ML:2.2 0.0002665 0.24 AML other m 2018-04-23T17:12:21.56
IV.SIRI.HHN. ML:2.1 0.00018449999999999999 0.22 AML other m 2018-04-23T17:12:22.20
IV.SIRI.HNE. ML:2.0 0.000176 0.2 AML other m 2018-04-23T17:12:22.10
IV.SIRI.HNN. ML:2.1 0.0001825 0.22 AML other m 2018-04-23T17:12:22.09
IV.SIRI.HHE. ML:2.1 0.0001855 0.22 AML other m 2018-04-23T17:12:22.09
IV.PALZ.HHN. ML:2.0 0.000261 0.96 AML other m 2018-04-23T17:12:22.82
IV.PTRP.HHE. ML:1.8 0.00011449999999999999 0.5 AML other m 2018-04-23T17:12:23.44
IV.MCEL.HNN. ML:1.9 0.0001785 1.1 AML other m 2018-04-23T17:12:23.23
IV.MCEL.HHN. ML:1.9 0.000183 0.88 AML other m 2018-04-23T17:12:25.63
IV.PAOL.HHN. ML:2.1 0.00017099999999999998 0.62 AML other m 2018-04-23T17:12:25.52
IV.PAOL.HNN. ML:2.4 0.000379 0.68 AML other m 2018-04-23T17:12:25.53
IV.PAOL.HNE. ML:2.2 0.000224 0.9 AML other m 2018-04-23T17:12:26.20
IV.PAOL.HHE. ML:2.0 0.0001375 1.12 AML other m 2018-04-23T17:12:26.66
IV.PTRP.HHN. ML:1.7 0.00010200000000000001 0.64 AML other m 2018-04-23T17:12:26.61
IV.MTSN.HHN. ML:1.9 0.0001475 0.56 AML other m 2018-04-23T17:12:27.45
IV.MTSN.HHE. ML:1.8 0.00014350000000000002 0.66 AML other m 2018-04-23T17:12:27.17
IV.MELA.HHE. ML:2.0 0.0000896 0.58 AML other m 2018-04-23T17:12:32.26
IV.SGRT.HHN. ML:2.2 0.000131 0.76 AML other m 2018-04-23T17:12:33.41
IV.SGRT.HHE. ML:2.3 0.000156 0.24 AML other m 2018-04-23T17:12:34.26
IV.MELA.HHN. ML:2.0 0.00008599999999999999 0.64 AML other m 2018-04-23T17:12:40.48
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