Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 01-07-2023 and time 12:06:33 (Italy) in region 4 km E Colliano (SA)

A magnitude ML 1.9 earthquake occured in region: 4 km E Colliano (SA), on

  • 01-07-2023 10:06:33 (UTC)
  • 01-07-2023 12:06:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7280, 15.3380 at 7 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
Colliano SA 4 3638 3638
Valva SA 6 1643 5281
Laviano SA 7 1438 6719
Palomonte SA 8 3985 10704
Santomenna SA 9 443 11147
Oliveto Citra SA 9 3802 14949
San Gregorio Magno SA 10 4286 19235
Castelnuovo di Conza SA 10 619 19854
Castelgrande PZ 10 943 20797
Buccino SA 11 5047 25844
Senerchia AV 11 842 26686
Calabritto AV 12 2391 29077
Contursi Terme SA 12 3394 32471
Muro Lucano PZ 13 5497 37968
Pescopagano PZ 13 1910 39878
Sant'Andrea di Conza AV 13 1539 41417
Caposele AV 13 3483 44900
Romagnano al Monte SA 14 368 45268
Ricigliano SA 14 1144 46412
Conza della Campania AV 15 1373 47785
Teora AV 16 1537 49322
Balvano PZ 17 1830 51152
Bella PZ 17 5171 56323
Salvitelle SA 18 560 56883
Sicignano degli Alburni SA 19 3519 60402
Cairano AV 19 326 60728
Rapone PZ 19 990 61718
San Fele PZ 20 3004 64722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Battipaglia (50786 inhabitants)
41 Km W of Potenza (67122 inhabitants)
49 Km E of Salerno (135261 inhabitants)
50 Km E of Avellino (54857 inhabitants)
53 Km E of Cava de' Tirreni (53659 inhabitants)
65 Km SE of Benevento (60091 inhabitants)
68 Km E of Scafati (50787 inhabitants)
72 Km E of Castellammare di Stabia (66466 inhabitants)
76 Km SW of Cerignola (58396 inhabitants)
82 Km E of Torre del Greco (86275 inhabitants)
84 Km E of Portici (55274 inhabitants)
84 Km S of Foggia (151991 inhabitants)
84 Km E of Ercolano (53709 inhabitants)
85 Km E of Acerra (59573 inhabitants)
89 Km E of Afragola (65057 inhabitants)
90 Km E of Casoria (77642 inhabitants)
92 Km E of Napoli (974074 inhabitants)
93 Km E of Caserta (76326 inhabitants)
98 Km SW of Andria (100440 inhabitants)
98 Km E of Giugliano in Campania (122974 inhabitants)
98 Km E of Marano di Napoli (59874 inhabitants)
99 Km E of Aversa (53047 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 1.9 2023-07-01
10:06:33		 40.728 15.3382 7 2023-07-01
10:21:20		 Sala Sismica INGV-Roma 118875181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-01 10:06:33 ± 0.09
Latitude 40.7280 ± 0.0054
Longitude 15.3382 ± 0.0071
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118875181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 617
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.97397
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 28
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 118875181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-01 10:21:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2023-07-01T10:07:05.57 1.0 undecidable manual S 79 108.114 50 0.25 20
IV.LRP.EHZ. 2023-07-01T10:07:02.64 3.0 positive manual P 0.13 0
IV.AMUR.HHZ. 2023-07-01T10:06:52.53 0.1 undecidable manual P 79 108.114 50 0.79 67
IV.CMPR.HHZ. 2023-07-01T10:06:48.05 0.6 undecidable manual S 184 45.5211 50 -0.57 42
IV.MRVN.HHZ. 2023-07-01T10:06:47.98 0.1 undecidable manual P 63 80.8635 50 0.44 81
IV.SIRI.HHZ. 2023-07-01T10:06:46.15 0.1 undecidable manual P 143 75.2691 50 -0.53 80
IV.MGR.HHZ. 2023-07-01T10:06:45.05 0.1 undecidable manual P 164 67.9764 50 -0.5 82
IX.SRN3.HHZ.02 2023-07-01T10:06:44.23 0.6 undecidable manual S 159 28.6491 104 0.76 40
IV.MCEL.HHZ. 2023-07-01T10:06:44.14 0.6 negative manual P 139 59.3961 50 -0.09 45
IV.ACER.HHZ. 2023-07-01T10:06:43.07 0.6 positive manual P 82 51.2154 50 0.1 46
IX.RDM3.HNZ.02 2023-07-01T10:06:43.16 0.3 undecidable manual S 45 23.3544 108 1.48 42
IV.CDRU.HHZ. 2023-07-01T10:06:42.59 0.6 undecidable manual S 186 26.5512 106 -0.18 47
IV.SLCN.HNE. 2023-07-01T10:06:42.02 0.1 undecidable manual P 146 44.9217 50 0.01 95
IV.SNAL.HHZ. 2023-07-01T10:06:42.11 0.6 undecidable manual S 334 24.4533 107 0.06 49
IX.PGN3.HNZ.02 2023-07-01T10:06:42.51 0.1 undecidable manual P 114 42.3243 50 0.92 72
IV.CMPR.HHZ. 2023-07-01T10:06:41.57 0.1 undecidable manual P 184 45.5211 50 -0.53 84
IX.NSC3.HNE.02 2023-07-01T10:06:41.69 0.6 undecidable manual S 306 22.4553 108 0.31 46
IV.SGO.HHZ. 2023-07-01T10:06:40.92 0.6 undecidable manual S 188 18.7701 112 0.73 41
IV.CAFE.HNZ. 2023-07-01T10:06:39.92 0.1 undecidable manual P 346 34.3434 102 -0.31 91
IX.BEL3.HNE.02 2023-07-01T10:06:39.12 0.1 undecidable manual P 93 25.1526 106 0.68 83
IV.MCRV.HHE. 2023-07-01T10:06:39.66 0.3 undecidable manual S 293 15.4734 116 0.51 67
IX.SRN3.HHZ.02 2023-07-01T10:06:39.08 0.1 undecidable manual P 159 28.6491 104 -0.05 97
IX.RDM3.HNZ.02 2023-07-01T10:06:38.56 0.1 undecidable manual P 45 23.3544 108 0.46 90
IX.SCL3.EHZ.02 2023-07-01T10:06:38.07 0.6 undecidable manual S 104 14.9739 116 -0.93 38
IX.MNT3.HNE.02 2023-07-01T10:06:38.51 0.1 undecidable manual P 294 30.3474 104 -0.94 73
IV.SNAL.HHZ. 2023-07-01T10:06:38.01 1.0 undecidable manual P 334 24.4533 107 -0.3 23
IX.SNR3.EHZ.02 2023-07-01T10:06:38.83 0.6 undecidable manual S 274 12.2766 121 0.67 42
IV.CDRU.HHZ. 2023-07-01T10:06:38.55 0.1 undecidable manual P 186 26.5512 106 -0.17 95
IX.CGG3.HNE.02 2023-07-01T10:06:38.70 0.1 undecidable manual P 143 25.8519 106 0.13 96
IV.SGO.HHZ. 2023-07-01T10:06:37.59 0.1 undecidable manual P 188 18.7701 112 0.36 92
IX.PST3.HNE.02 2023-07-01T10:06:37.90 0.1 undecidable manual P 203 20.1687 110 0.4 91
IX.NSC3.HNE.02 2023-07-01T10:06:37.52 0.1 undecidable manual P 306 22.4553 108 -0.4 91
IX.LIO3.HNE.02 2023-07-01T10:06:37.56 0.1 undecidable manual P 325 22.9548 108 -0.46 90
IX.CLT3.EHE.02 2023-07-01T10:06:37.59 0.1 undecidable manual P 16 20.1687 110 0.09 97
IV.MRLC.HHZ. 2023-07-01T10:06:37.73 0.6 undecidable manual S 76 13.0758 120 -0.67 42
IX.SCL3.EHZ.02 2023-07-01T10:06:36.20 0.1 undecidable manual P 104 14.9739 116 -0.35 93
IX.COL3.HHZ.02 2023-07-01T10:06:36.40 0.6 undecidable manual S 188 4.5954 148 0.18 49
IX.VDS3.HNE.01 2023-07-01T10:06:36.20 0.6 undecidable manual S 79 7.5813 134 -0.68 43
IX.SNR3.EHZ.02 2023-07-01T10:06:36.58 0.3 negative manual P 274 12.2766 121 0.52 67
IV.MCRV.HHE. 2023-07-01T10:06:36.56 0.1 undecidable manual P 293 15.4734 116 -0.08 99
IX.COL3.HHZ.02 2023-07-01T10:06:35.03 0.1 positive manual P 188 4.5954 148 0.09 100
IV.MRLC.HHZ. 2023-07-01T10:06:35.59 0.1 undecidable manual P 76 13.0758 120 -0.61 87
IX.VDS3.HNE.01 2023-07-01T10:06:34.70 0.1 undecidable manual P 79 7.5813 134 -0.62 87
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRLC.HHE. ML:2.1 0.00149 0.68 AML other m 2023-07-01T10:06:39.46
IV.MRLC.HNE. ML:1.7 0.0006975 0.68 AML other m 2023-07-01T10:06:39.46
IV.MRLC.HNN. ML:1.8 0.0007989999999999999 0.36 AML other m 2023-07-01T10:06:40.30
IV.MRLC.HHN. ML:2.2 0.0017250000000000002 0.22 AML other m 2023-07-01T10:06:40.30
IX.SNR3.EHE.02 ML:2.3 0.0025 0.56 AML other m 2023-07-01T10:06:40.83
IX.SNR3.HNE.01 ML:2.4 0.0028049999999999998 0.56 AML other m 2023-07-01T10:06:40.83
IV.SGO.HHN. ML:1.9 0.0007005000000000001 1.78 AML other m 2023-07-01T10:06:41.92
IX.SCL3.EHE.02 ML:2.3 0.001915 1.46 AML other m 2023-07-01T10:06:42.02
IX.SCL3.HNE.01 ML:2.3 0.001975 1.46 AML other m 2023-07-01T10:06:42.02
IV.SGO.HHE. ML:1.6 0.00033999999999999997 0.34 AML other m 2023-07-01T10:06:42.32
IX.SNR3.EHN.02 ML:2.4 0.0030949999999999997 0.9 AML other m 2023-07-01T10:06:43.46
IX.SNR3.HNN.01 ML:2.4 0.00339 0.9 AML other m 2023-07-01T10:06:43.46
IV.CDRU.HHN. ML:1.7 0.0002715 0.3 AML other m 2023-07-01T10:06:43.63
IX.SCL3.EHN.02 ML:2.4 0.002515 0.52 AML other m 2023-07-01T10:06:43.38
IX.SCL3.HNN.01 ML:2.4 0.0027649999999999997 0.52 AML other m 2023-07-01T10:06:43.38
IX.SRN3.HHE.02 ML:1.8 0.0003605 0.28 AML other m 2023-07-01T10:06:44.97
IV.CDRU.HHE. ML:1.8 0.00032151815 0.32 AML other m 2023-07-01T10:06:43.63
IV.SNAL.HHE. ML:1.6 0.00025381750000000005 0.9216 AML other m 2023-07-01T10:06:45.07
IX.SRN3.HHN.02 ML:1.7 0.00029212785 0.2112 AML other m 2023-07-01T10:06:45.47
IV.SNAL.HHN. ML:1.7 0.00033479415 0.96 AML other m 2023-07-01T10:06:43.93
IV.ACER.HHN. ML:1.7 0.000127 1.28 AML other m 2023-07-01T10:06:55.29
IV.MCEL.HHE. ML:1.3 0.000039319399999999995 0.4416 AML other m 2023-07-01T10:06:53.69
IV.ACER.HHE. ML:1.6 0.00011686240000000001 0.3008 AML other m 2023-07-01T10:06:54.37
IV.MRVN.HHE. ML:1.6 0.000055849999999999996 0.34 AML other m 2023-07-01T10:07:01.10
IV.MCEL.HHN. ML:1.4 0.000051779655000000005 0.3968 AML other m 2023-07-01T10:06:55.34
IV.MRVN.HHN. ML:1.5 0.0000461 1.06 AML other m 2023-07-01T10:07:02.91
IX.COL3.HHE.02 ML:0.0 0.01590456 0.2752 AML other m 2023-07-01T10:06:37.03
IX.COL3.HHN.02 ML:0.0 0.012848905 0.192 AML other m 2023-07-01T10:06:36.82
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