Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 18-02-2024 and time 02:04:20 (Italy) in region 4 km N Ricigliano (SA)

A magnitude ML 1.6 earthquake occured in region: 4 km N Ricigliano (SA), on

  • 18-02-2024 01:04:20 (UTC)
  • 18-02-2024 02:04:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7080, 15.4850 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
Ricigliano SA 4 1144 1144
Muro Lucano PZ 5 5497 6641
Balvano PZ 7 1830 8471
Bella PZ 7 5171 13642
San Gregorio Magno SA 9 4286 17928
Romagnano al Monte SA 10 368 18296
Castelgrande PZ 10 943 19239
Baragiano PZ 10 2671 21910
Vietri di Potenza PZ 12 2832 24742
Buccino SA 13 5047 29789
Salvitelle SA 13 560 30349
San Fele PZ 13 3004 33353
Picerno PZ 15 5985 39338
Rapone PZ 16 990 40328
Caggiano SA 16 2765 43093
Pescopagano PZ 16 1910 45003
Savoia di Lucania PZ 16 1127 46130
Colliano SA 16 3638 49768
Ruoti PZ 16 3579 53347
Ruvo del Monte PZ 16 1083 54430
Palomonte SA 17 3985 58415
Auletta SA 17 2336 60751
Laviano SA 17 1438 62189
Santomenna SA 18 443 62632
Sant'Andrea di Conza AV 18 1539 64171
Valva SA 18 1643 65814
Pertosa SA 18 690 66504
Castelnuovo di Conza SA 19 619 67123
Sant'Angelo Le Fratte PZ 19 1429 68552
Avigliano PZ 20 11577 80129

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Potenza (67122 inhabitants)
44 Km E of Battipaglia (50786 inhabitants)
61 Km E of Salerno (135261 inhabitants)
62 Km E of Avellino (54857 inhabitants)
66 Km E of Cava de' Tirreni (53659 inhabitants)
71 Km SW of Cerignola (58396 inhabitants)
76 Km SE of Benevento (60091 inhabitants)
81 Km E of Scafati (50787 inhabitants)
84 Km S of Foggia (151991 inhabitants)
85 Km E of Castellammare di Stabia (66466 inhabitants)
89 Km SW of Andria (100440 inhabitants)
91 Km W of Altamura (70396 inhabitants)
94 Km W of Matera (60436 inhabitants)
95 Km E of Torre del Greco (86275 inhabitants)
95 Km SW of Barletta (94814 inhabitants)
96 Km E of Portici (55274 inhabitants)
97 Km E of Ercolano (53709 inhabitants)
97 Km E of Acerra (59573 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 1.6 2024-02-18
01:04:20		 40.7078 15.4847 6 2024-02-18
01:14:36		 Sala Sismica INGV-Roma 125346571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-18 01:04:20 ± 0.14
Latitude 40.7078 ± 0.0081
Longitude 15.4847 ± 0.0107
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 125346571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 942
Semi-minor axis of confidence ellipse (meter) 231
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 137
Circular confidence region, given by single value of horizontal uncertainty (meter) 940.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.60075
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.5
Num. used stations 20
Type of magnitude ML
Reference to an origin 125346571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-18 01:14:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SIRI.HHZ. 2024-02-18T01:04:32.18 0.6 undecidable manual P 151 66.6777 50 -0.35 43
IV.PALZ.HHZ. 2024-02-18T01:04:29.39 0.1 undecidable manual P 57 47.7189 50 -0.22 91
IV.ACER.HHZ. 2024-02-18T01:04:28.60 0.6 positive manual P 77 39.4272 98 0.46 44
IV.CAFE.HHZ. 2024-02-18T01:04:28.49 0.1 undecidable manual P 330 41.1255 98 0.01 96
IV.CMPR.HHZ. 2024-02-18T01:04:28.34 0.6 undecidable manual P 200 45.9207 50 -0.99 35
IX.PGN3.HNE.02 2024-02-18T01:04:27.83 0.3 undecidable manual P 120 30.2475 101 1.51 41
IV.SNAL.HHZ. 2024-02-18T01:04:26.40 0.3 undecidable manual P 316 33.4443 100 -0.55 65
IX.COL3.HHZ.02 2024-02-18T01:04:26.08 0.6 undecidable manual S 260 13.1757 113 0.95 38
IX.SNR3.EHZ.02 2024-02-18T01:04:25.39 0.1 undecidable manual P 277 24.753 103 0.15 96
IV.CDRU.HHZ. 2024-02-18T01:04:25.69 0.1 undecidable manual P 212 28.5492 101 -0.3 93
IV.SGO.HHN. 2024-02-18T01:04:24.97 0.1 undecidable manual P 222 22.1556 104 0.24 95
IX.RDM3.HNE.02 2024-02-18T01:04:24.61 0.1 undecidable manual P 13 19.0698 107 0.47 91
IX.CSG3.HNE.01 2024-02-18T01:04:23.17 0.1 undecidable manual P 352 12.3765 115 0.29 95
IX.COL3.HHZ.02 2024-02-18T01:04:23.27 0.1 undecidable manual P 260 13.1757 113 0.24 96
IX.SCL3.EHZ.02 2024-02-18T01:04:22.00 0.3 undecidable manual S 122 2.6973 155 -0.34 72
IV.MRLC.HHZ. 2024-02-18T01:04:22.49 0.6 undecidable manual S 4 5.3946 137 -0.38 47
IX.SFL3.HNN.01 2024-02-18T01:04:22.74 0.1 undecidable manual P 41 11.9769 116 -0.06 100
IX.VDS3.HNZ.02 2024-02-18T01:04:21.32 0.1 undecidable manual P 307 6.0939 133 -0.5 92
IX.SCL3.EHZ.02 2024-02-18T01:04:21.24 0.1 undecidable manual P 122 2.6973 155 -0.17 99
IV.MRLC.HHZ. 2024-02-18T01:04:21.49 1.0 undecidable manual P 4 5.3946 137 -0.23 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHE.02 ML:2.1 0.0016799999999999999 0.32 AML other m 2024-02-18T01:04:26.50
IX.COL3.HNE.01 ML:2.1 0.001575 0.3 AML other m 2024-02-18T01:04:26.50
IX.COL3.HNN.01 ML:2.0 0.0011135000000000001 1.1 AML other m 2024-02-18T01:04:28.91
IX.COL3.HHN.02 ML:1.9 0.001029 0.3 AML other m 2024-02-18T01:04:29.22
IV.CDRU.HHN. ML:1.0 0.00005855000000000001 0.54 AML other m 2024-02-18T01:04:33.34
IX.SNR3.EHE.02 ML:1.9 0.000522 1.64 AML other m 2024-02-18T01:04:33.03
IV.CDRU.HHE. ML:1.2 0.00009195 0.66 AML other m 2024-02-18T01:04:33.89
IX.SNR3.EHN.02 ML:2.1 0.0008715 0.24 AML other m 2024-02-18T01:04:35.70
IV.ACER.HHN. ML:1.6 0.000135 0.46 AML other m 2024-02-18T01:04:36.15
IV.ACER.HNN. ML:1.6 0.000144 0.5 AML other m 2024-02-18T01:04:36.15
IV.CAFE.HHE. ML:1.2 0.00005975 1.2 AML other m 2024-02-18T01:04:38.13
IV.CMPR.HHE. ML:1.0 0.00002945 1.2 AML other m 2024-02-18T01:04:39.97
IV.ACER.HHE. ML:1.5 0.00011899999999999999 0.4 AML other m 2024-02-18T01:04:40.55
IV.ACER.HNE. ML:1.5 0.000125 0.72 AML other m 2024-02-18T01:04:41.38
IV.SIRI.HHE. ML:1.2 0.00002895 0.24 AML other m 2024-02-18T01:04:44.40
IV.CAFE.HHN. ML:1.2 0.00004815 0.58 AML other m 2024-02-18T01:04:44.68
IV.SIRI.HHN. ML:1.1 0.00002465 0.34 AML other m 2024-02-18T01:04:44.97
IV.CMPR.HHN. ML:0.8 0.0000218 1.16 AML other m 2024-02-18T01:04:45.95
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