Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 01-05-2023 and time 18:38:32 (Italy) in region 4 km W Bonefro (CB)

A magnitude ML 1.5 earthquake occured in region: 4 km W Bonefro (CB), on

  • 01-05-2023 16:38:32 (UTC)
  • 01-05-2023 18:38:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6940, 14.8900 at 24 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
Bonefro CB 4 1384 1384
Provvidenti CB 6 119 1503
Casacalenda CB 6 2135 3638
San Giuliano di Puglia CB 6 1042 4680
Ripabottoni CB 7 514 5194
Montelongo CB 7 365 5559
Colletorto CB 8 1938 7497
Sant'Elia a Pianisi CB 8 1818 9315
Montorio nei Frentani CB 8 437 9752
Santa Croce di Magliano CB 9 4435 14187
Morrone del Sannio CB 9 587 14774
Macchia Valfortore CB 11 576 15350
Monacilioni CB 11 523 15873
Rotello CB 12 1212 17085
Campolieto CB 12 839 17924
Larino CB 12 6793 24717
Pietracatella CB 12 1375 26092
Castellino del Biferno CB 13 545 26637
Carlantino FG 13 980 27617
Guardialfiera CB 15 1065 28682
Lupara CB 15 505 29187
Petrella Tifernina CB 16 1170 30357
Celenza Valfortore FG 16 1598 31955
San Giovanni in Galdo CB 17 580 32535
Castelbottaccio CB 17 312 32847
Toro CB 17 1391 34238
Ururi CB 17 2693 36931
Lucito CB 17 696 37627
Matrice CB 17 1115 38742
Montagano CB 19 1086 39828
Civitacampomarano CB 19 417 40245
Campodipietra CB 19 2570 42815
Casalnuovo Monterotaro FG 20 1556 44371

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of San Severo (53905 inhabitants)
60 Km W of Foggia (151991 inhabitants)
63 Km N of Benevento (60091 inhabitants)
83 Km NE of Caserta (76326 inhabitants)
86 Km W of Manfredonia (57279 inhabitants)
87 Km N of Avellino (54857 inhabitants)
94 Km NE of Acerra (59573 inhabitants)
94 Km SE of Chieti (51815 inhabitants)
97 Km NW of Cerignola (58396 inhabitants)
98 Km NE of Aversa (53047 inhabitants)
98 Km NE 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 1.5 2023-05-01
16:38:32		 41.6935 14.8895 24 2023-05-01
16:48:25		 Sala Sismica INGV-Roma 116943041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-01 16:38:32 ± 0.4
Latitude 41.6935 ± 0.0126
Longitude 14.8895 ± 0.0229
Depth (km) 24 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116943041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1465
Semi-minor axis of confidence ellipse (meter) 1258
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 1470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.63312
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 116943041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-01 16:48:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
1J.FX14.HHZ.00 2023-05-01T16:40:08.17 3.0 undecidable manual Sg 14.4 0
OX.MARN.HHZ. 2023-05-01T16:39:54.41 3.0 undecidable manual Pg 9.61 0
IV.MDI.HHZ. 2023-05-01T16:39:51.78 3.0 positive manual Pn -3.65 0
IV.ATPI.EHZ. 2023-05-01T16:39:44.27 3.0 undecidable manual Sn -6.76 0
IV.LNSS.HHZ. 2023-05-01T16:39:33.11 3.0 undecidable manual Sg 4.46 0
7C.SPAOL.HNZ. 2023-05-01T16:39:23.07 3.0 undecidable manual Pg 2.39 0
IV.RCAV.EHZ. 2023-05-01T16:39:21.10 3.0 undecidable manual Sn -0.04 0
IV.FIAM.HHZ. 2023-05-01T16:38:59.57 3.0 undecidable manual Pg 1.21 0
IV.LPEL.HNE. 2023-05-01T16:38:45.76 0.1 undecidable manual P 304 70.2741 102 0.41 85
IV.GATE.HHZ. 2023-05-01T16:38:42.74 0.3 undecidable manual S 175 20.0688 135 0.45 69
IV.MCEL.HHZ. 2023-05-01T16:38:42.29 3.0 undecidable manual P -1.11 0
IV.MELA.HHZ. 2023-05-01T16:38:42.56 0.6 undecidable manual S 86 19.7691 135 0.34 47
IT.LRNO.HNE. 2023-05-01T16:38:41.22 0.3 undecidable manual S 11 12.7761 148 0.15 74
IV.CIGN.HHZ. 2023-05-01T16:38:40.13 0.6 undecidable manual S 164 4.5954 168 -0.1 51
IV.MELA.HHZ. 2023-05-01T16:38:38.16 0.1 undecidable manual P 86 19.7691 135 -0.12 99
IV.GATE.HHZ. 2023-05-01T16:38:38.64 0.3 undecidable manual P 175 20.0688 135 0.32 71
IV.BSSO.HHZ. 2023-05-01T16:38:38.93 0.1 undecidable manual P 236 29.4483 122 -0.52 87
IT.LRNO.HNE. 2023-05-01T16:38:37.47 0.1 undecidable manual P 11 12.7761 148 -0.14 100
IV.CIGN.HHZ. 2023-05-01T16:38:36.30 0.6 undecidable manual P 164 4.5954 168 -0.83 41
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CIGN.HHN. ML:1.9 0.00052335425 0.256 AML other m 2023-05-01T16:38:40.22
IV.CIGN.HHE. ML:1.8 0.0004272779 0.4608 AML other m 2023-05-01T16:38:41.70
IV.MELA.HHE. ML:1.4 0.00011947955000000001 1.2544 AML other m 2023-05-01T16:38:56.52
IV.MELA.HHN. ML:1.4 0.00013914128 0.1024 AML other m 2023-05-01T16:38:43.01
IV.MELA.HNE. ML:1.6 0.00017479365 0.9344 AML other m 2023-05-01T16:38:57.63
IV.MELA.HNN. ML:1.6 0.0001819204 1.4592 AML other m 2023-05-01T16:38:43.32
IV.GATE.HHE. ML:1.3 0.00010470603 0.2432 AML other m 2023-05-01T16:38:44.75
IV.GATE.HHN. ML:1.2 0.00008069693499999999 0.2176 AML other m 2023-05-01T16:38:45.04
IV.GATE.HNE. ML:1.3 0.00010357187 0.2304 AML other m 2023-05-01T16:38:44.75
IV.GATE.HNN. ML:1.3 0.00009518311000000001 0.2432 AML other m 2023-05-01T16:38:45.04
IV.BSSO.HNE. ML:1.4 0.00009687924000000001 0.2816 AML other m 2023-05-01T16:38:44.87
IV.BSSO.HNN. ML:1.3 0.00008143017499999999 0.2688 AML other m 2023-05-01T16:38:45.32
IV.BSSO.HHE. ML:1.4 0.00010026755500000001 0.3072 AML other m 2023-05-01T16:38:44.87
IV.BSSO.HHN. ML:1.4 0.0000920526 0.2944 AML other m 2023-05-01T16:38:45.34
IV.FIAM.HNN. ML:2.5 0.000128158355 0.9216 AML other m 2023-05-01T16:39:04.54
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