Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 17-12-2023 and time 11:12:11 (Italy) in region 5 km NW Ricigliano (SA)

A magnitude ML 1.6 earthquake occured in region: 5 km NW Ricigliano (SA), on

  • 17-12-2023 10:12:11 (UTC)
  • 17-12-2023 11:12:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7040, 15.4580 at 2 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 5 1144 1144
Muro Lucano PZ 6 5497 6641
San Gregorio Magno SA 7 4286 10927
Balvano PZ 7 1830 12757
Romagnano al Monte SA 9 368 13125
Bella PZ 9 5171 18296
Castelgrande PZ 9 943 19239
Buccino SA 11 5047 24286
Baragiano PZ 12 2671 26957
Vietri di Potenza PZ 12 2832 29789
Salvitelle SA 13 560 30349
Colliano SA 14 3638 33987
San Fele PZ 15 3004 36991
Palomonte SA 15 3985 40976
Caggiano SA 16 2765 43741
Pescopagano PZ 16 1910 45651
Laviano SA 16 1438 47089
Rapone PZ 16 990 48079
Valva SA 16 1643 49722
Santomenna SA 16 443 50165
Auletta SA 16 2336 52501
Picerno PZ 17 5985 58486
Savoia di Lucania PZ 17 1127 59613
Castelnuovo di Conza SA 17 619 60232
Sant'Andrea di Conza AV 17 1539 61771
Ruvo del Monte PZ 18 1083 62854
Pertosa SA 18 690 63544
Ruoti PZ 19 3579 67123
Oliveto Citra SA 19 3802 70925
Contursi Terme SA 19 3394 74319
Sant'Angelo Le Fratte PZ 20 1429 75748
Conza della Campania AV 20 1373 77121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Potenza (67122 inhabitants)
41 Km E of Battipaglia (50786 inhabitants)
59 Km E of Salerno (135261 inhabitants)
60 Km E of Avellino (54857 inhabitants)
63 Km E of Cava de' Tirreni (53659 inhabitants)
73 Km SW of Cerignola (58396 inhabitants)
74 Km SE of Benevento (60091 inhabitants)
79 Km E of Scafati (50787 inhabitants)
82 Km E of Castellammare di Stabia (66466 inhabitants)
85 Km S of Foggia (151991 inhabitants)
91 Km SW of Andria (100440 inhabitants)
92 Km E of Torre del Greco (86275 inhabitants)
93 Km W of Altamura (70396 inhabitants)
94 Km E of Portici (55274 inhabitants)
94 Km E of Ercolano (53709 inhabitants)
95 Km E of Acerra (59573 inhabitants)
96 Km W of Matera (60436 inhabitants)
97 Km SW of Barletta (94814 inhabitants)
100 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
Reviewed
Rev100 		ML 1.6 2023-12-17
10:12:11		 40.7043 15.4577 2 2023-12-17
10:32:09		 Sala Sismica INGV-Roma 124106301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-17 10:12:11 ± 0.23
Latitude 40.7043 ± 0.0081
Longitude 15.4577 ± 0.0095
Depth (km) 2 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124106301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 933
Semi-minor axis of confidence ellipse (meter) 452
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 331
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24372
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 124106301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-17 10:32:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDRU.HHE. 2023-12-17T10:12:16.39 0.3 undecidable manual P 208 27.0507 95 -0.33 67
IX.RDM3.HNE.02 2023-12-17T10:12:15.71 0.1 undecidable manual P 19 20.0688 97 0.38 90
IX.COL3.HHZ.02 2023-12-17T10:12:15.40 0.6 undecidable manual S 260 10.878 102 0.27 47
IX.SFL3.HNZ.01 2023-12-17T10:12:14.10 0.1 undecidable manual P 47 13.7751 100 0.02 98
IX.COL3.HHZ.02 2023-12-17T10:12:13.53 0.1 negative manual P 260 10.878 102 0.03 98
IV.MRLC.HHZ. 2023-12-17T10:12:13.35 0.6 undecidable manual S 24 6.3936 110 -0.27 47
IX.SCL3.EHZ.02 2023-12-17T10:12:13.37 0.6 undecidable manual S 103 4.5954 117 0.29 47
IX.SCL3.EHZ.02 2023-12-17T10:12:12.31 0.1 negative manual P 103 4.5954 117 -0.01 100
IV.MRLC.HHZ. 2023-12-17T10:12:12.30 0.1 positive manual P 24 6.3936 110 -0.33 93
IV.TDS.HHZ. 2023-12-17T10:12:04.43 3.0 undecidable manual P 0.01 0
IV.ORI.HHZ. 2023-12-17T10:11:56.69 3.0 negative manual P 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.COL3.HHN.02 ML:1.4 0.000468 0.3 AML other m 2023-12-17T10:12:16.20
IX.COL3.HHE.02 ML:1.6 0.000797 1.82 AML other m 2023-12-17T10:12:16.06
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