Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-04-2023 and time 05:16:48 (Italy) in region 4 km E Tufara (CB)

A magnitude ML 1.0 earthquake occured in region: 4 km E Tufara (CB), on

  • 28-04-2023 03:16:48 (UTC)
  • 28-04-2023 05:16:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4910, 14.9890 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
Tufara CB 4 925 925
San Marco la Catola FG 4 1012 1937
Volturara Appula FG 5 430 2367
Gambatesa CB 7 1464 3831
Castelvetere in Val Fortore BN 7 1240 5071
Celenza Valfortore FG 8 1598 6669
San Bartolomeo in Galdo BN 9 4867 11536
Baselice BN 10 2397 13933
Motta Montecorvino FG 11 730 14663
Volturino FG 11 1743 16406
Carlantino FG 11 980 17386
Riccia CB 13 5262 22648
Alberona FG 13 985 23633
Pietramontecorvino FG 13 2721 26354
Macchia Valfortore CB 13 576 26930
Pietracatella CB 14 1375 28305
Castelnuovo della Daunia FG 15 1445 29750
Foiano di Val Fortore BN 15 1410 31160
Casalvecchio di Puglia FG 16 1877 33037
Roseto Valfortore FG 16 1074 34111
Jelsi CB 16 1781 35892
Casalnuovo Monterotaro FG 17 1556 37448
Sant'Elia a Pianisi CB 17 1818 39266
Castelpagano BN 18 1483 40749
Montefalcone di Val Fortore BN 18 1525 42274
Colle Sannita BN 19 2431 44705
Colletorto CB 19 1938 46643
Monacilioni CB 20 523 47166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of San Severo (53905 inhabitants)
44 Km NE of Benevento (60091 inhabitants)
46 Km W of Foggia (151991 inhabitants)
66 Km N of Avellino (54857 inhabitants)
72 Km NE of Caserta (76326 inhabitants)
79 Km W of Manfredonia (57279 inhabitants)
80 Km NE of Acerra (59573 inhabitants)
80 Km W of Cerignola (58396 inhabitants)
85 Km NE of Afragola (65057 inhabitants)
87 Km NE of Aversa (53047 inhabitants)
87 Km NE of Casoria (77642 inhabitants)
91 Km NE of Giugliano in Campania (122974 inhabitants)
91 Km N of Cava de' Tirreni (53659 inhabitants)
91 Km NE of Scafati (50787 inhabitants)
91 Km NE of Portici (55274 inhabitants)
92 Km N of Salerno (135261 inhabitants)
93 Km NE of Ercolano (53709 inhabitants)
94 Km NE of Marano di Napoli (59874 inhabitants)
94 Km NE of Torre del Greco (86275 inhabitants)
95 Km NE of Napoli (974074 inhabitants)
98 Km N of Battipaglia (50786 inhabitants)
98 Km NE of Castellammare di Stabia (66466 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 2023-04-28
03:16:48		 41.4907 14.9887 22 2024-03-01
17:18:07		 Bollettino Sismico Italiano INGV 117276791
Reviewed
Rev100 		ML 0.9 2023-04-28
03:16:48		 41.4958 15.0082 16 2023-04-28
19:02:52		 Sala Sismica INGV-Roma 116850671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-28 03:16:48 ± 0.2
Latitude 41.4907 ± 0.0099
Longitude 14.9887 ± 0.0084
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 117276791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1050
Semi-minor axis of confidence ellipse (meter) 266
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 348
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.48923
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:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 116850671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-28 19:02:52

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 117276791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-29 11:53:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNN. 2023-04-28T03:17:02.11 0.6 undecidable manual S 250 40.7259 110 -0.04 51
IV.BSSO.HHZ. 2023-04-28T03:17:01.13 0.6 undecidable manual S 281 33.3444 116 0.79 41
OT.OT11.EHE. 2023-04-28T03:16:59.29 0.6 undecidable manual S 85 28.9488 120 0 52
IV.MELA.HHZ. 2023-04-28T03:16:58.50 0.3 undecidable manual S 26 26.4513 123 -0.23 73
OT.OT05.EHZ. 2023-04-28T03:16:58.53 0.3 undecidable manual P 70 54.3012 105 0.25 71
IV.MOCO.HNE. 2023-04-28T03:16:57.63 0.6 undecidable manual S 133 19.4694 133 0.4 48
IV.CIGN.HHN. 2023-04-28T03:16:57.72 0.6 undecidable manual S 339 19.4694 133 0.49 48
IV.BSSO.HHZ. 2023-04-28T03:16:55.27 0.3 undecidable manual P 281 33.3444 116 0.03 77
IV.PTRJ.HNN. 2023-04-28T03:16:55.93 0.3 undecidable manual P 250 40.7259 110 -0.36 71
IV.CIGN.HHN. 2023-04-28T03:16:54.02 0.6 undecidable manual P 339 19.4694 133 0.57 47
OT.OT11.EHE. 2023-04-28T03:16:54.32 0.3 undecidable manual P 85 28.9488 120 -0.31 73
IV.GATE.HHZ. 2023-04-28T03:16:54.82 0.6 undecidable manual S 291 6.993 160 -0.53 48
IV.MELA.HHZ. 2023-04-28T03:16:54.02 0.1 undecidable manual P 26 26.4513 123 -0.29 97
IV.SACR.HNN. 2023-04-28T03:16:53.93 0.1 undecidable manual P 246 25.6521 123 -0.28 99
IV.MOCO.HNE. 2023-04-28T03:16:53.70 0.1 undecidable manual P 133 19.4694 133 0.25 100
IV.GATE.HHZ. 2023-04-28T03:16:52.41 0.3 undecidable manual P 291 6.993 160 0.05 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GATE.HHE. ML:1.0 0.0000816 0.36 AML other m 2023-04-28T03:16:58.40
IV.GATE.HNE. ML:1.1 0.0000831 0.34 AML other m 2023-04-28T03:16:58.40
IV.GATE.HHN. ML:1.0 0.000064 0.4 AML other m 2023-04-28T03:16:58.62
IV.GATE.HNN. ML:1.0 0.00006644999999999999 1.12 AML other m 2023-04-28T03:17:01.63
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