Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 23-02-2023 and time 20:44:05 (Italy) in region 3 km NW Baselice (BN)

A magnitude ML 1.0 earthquake occured in region: 3 km NW Baselice (BN), on

  • 23-02-2023 19:44:05 (UTC)
  • 23-02-2023 20:44:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.4180, 14.9520 at 22 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
Baselice BN 3 2397 2397
Castelvetere in Val Fortore BN 3 1240 3637
San Bartolomeo in Galdo BN 5 4867 8504
Tufara CB 7 925 9429
Foiano di Val Fortore BN 8 1410 10839
Gambatesa CB 11 1464 12303
Montefalcone di Val Fortore BN 11 1525 13828
Colle Sannita BN 12 2431 16259
Castelpagano BN 12 1483 17742
Volturara Appula FG 12 430 18172
Riccia CB 12 5262 23434
San Marco la Catola FG 13 1012 24446
Roseto Valfortore FG 13 1074 25520
San Marco dei Cavoti BN 14 3371 28891
Circello BN 14 2388 31279
Molinara BN 14 1618 32897
Alberona FG 15 985 33882
Volturino FG 16 1743 35625
Celenza Valfortore FG 16 1598 37223
San Giorgio La Molara BN 17 2994 40217
Motta Montecorvino FG 17 730 40947
Jelsi CB 17 1781 42728
Ginestra degli Schiavoni BN 17 476 43204
Castelfranco in Miscano BN 17 916 44120
Reino BN 18 1210 45330
Santa Croce del Sannio BN 19 927 46257
Pietracatella CB 19 1375 47632
Carlantino FG 20 980 48612
Cercemaggiore CB 20 3777 52389
Macchia Valfortore CB 20 576 52965
Pago Veiano BN 20 2406 55371

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Benevento (60091 inhabitants)
47 Km SW of San Severo (53905 inhabitants)
50 Km W of Foggia (151991 inhabitants)
57 Km N of Avellino (54857 inhabitants)
64 Km NE of Caserta (76326 inhabitants)
71 Km NE of Acerra (59573 inhabitants)
77 Km NE of Afragola (65057 inhabitants)
79 Km NE of Casoria (77642 inhabitants)
80 Km NE of Aversa (53047 inhabitants)
81 Km W of Cerignola (58396 inhabitants)
82 Km N of Cava de' Tirreni (53659 inhabitants)
83 Km NE of Scafati (50787 inhabitants)
83 Km NE of Portici (55274 inhabitants)
83 Km NE of Giugliano in Campania (122974 inhabitants)
84 Km N of Salerno (135261 inhabitants)
84 Km W of Manfredonia (57279 inhabitants)
85 Km NE of Ercolano (53709 inhabitants)
86 Km NE of Torre del Greco (86275 inhabitants)
86 Km NE of Marano di Napoli (59874 inhabitants)
87 Km NE of Napoli (974074 inhabitants)
90 Km NE of Castellammare di Stabia (66466 inhabitants)
90 Km N of Battipaglia (50786 inhabitants)
96 Km NE of Pozzuoli (81661 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 1.0 2023-02-23
19:44:05		 41.4182 14.9518 22 2024-03-01
17:17:58		 Bollettino Sismico Italiano INGV 115142271
Reviewed
Rev100 		ML 0.7 2023-02-23
19:44:05		 41.4145 14.9287 10 2023-02-23
19:50:28		 Sala Sismica INGV-Roma 114739431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-23 19:44:05 ± 0.24
Latitude 41.4182 ± 0.0090
Longitude 14.9518 ± 0.0144
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115142271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1031
Semi-minor axis of confidence ellipse (meter) 623
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 114739431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-23 19:50:28

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 115142271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-13 17:33:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SGG.HHN. 2023-02-23T19:44:21.12 0.6 undecidable manual S 266 47.8188 107 0.3 45
IV.CAFE.HHN. 2023-02-23T19:44:20.35 0.6 undecidable manual S 151 49.4172 106 -0.87 37
IV.MELA.HHZ. 2023-02-23T19:44:17.95 0.3 undecidable manual S 24 35.0427 114 0.32 69
IV.SNAL.HHZ. 2023-02-23T19:44:16.22 0.6 undecidable manual P 158 58.6968 103 0.38 44
IV.APRC.HHN. 2023-02-23T19:44:15.57 0.3 undecidable manual P 52 61.7937 102 -0.74 57
IV.CIGN.HHZ. 2023-02-23T19:44:14.98 0.6 undecidable manual S 352 26.4513 122 -0.62 43
IV.SACR.HHZ. 2023-02-23T19:44:14.39 0.6 undecidable manual S 264 20.5683 130 0.07 49
IV.SGG.HHN. 2023-02-23T19:44:14.06 0.3 undecidable manual P 266 47.8188 107 -0.15 70
IV.MOCO.HHZ. 2023-02-23T19:44:14.22 0.6 undecidable manual S 107 17.9709 135 0.41 47
IV.CAFE.HHN. 2023-02-23T19:44:14.47 0.1 undecidable manual P 151 49.4172 106 0.02 96
IV.MELA.HHZ. 2023-02-23T19:44:12.32 0.1 undecidable manual P 24 35.0427 114 -0.05 97
IV.CIGN.HHZ. 2023-02-23T19:44:11.62 0.3 undecidable manual P 352 26.4513 122 0.42 69
IV.GATE.HHZ. 2023-02-23T19:44:11.89 0.6 undecidable manual S 342 11.0778 149 -0.78 42
IV.MOCO.HHZ. 2023-02-23T19:44:10.56 0.1 undecidable manual P 107 17.9709 135 0.4 93
IV.SACR.HHZ. 2023-02-23T19:44:10.41 0.1 undecidable manual P 264 20.5683 130 -0.06 100
IV.GATE.HHZ. 2023-02-23T19:44:09.62 0.3 undecidable manual P 342 11.0778 149 0.11 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HNE. ML:1.0 0.00007315212 0.384 AML other m 2023-02-23T19:44:14.89
IV.GATE.HHE. ML:1.0 0.00006385000000000001 0.38 AML other m 2023-02-23T19:44:14.70
IV.GATE.HHN. ML:1.0 0.0000607 0.38 AML other m 2023-02-23T19:44:15.54
IV.MOCO.HHE. ML:0.6 0.0000215008 0.6656 AML other m 2023-02-23T19:44:16.90
IV.MELA.HHE. ML:1.2 0.000056484855 0.2688 AML other m 2023-02-23T19:44:18.04
IV.MELA.HHN. ML:1.2 0.000052986610000000006 0.1792 AML other m 2023-02-23T19:44:19.32
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