Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 23-03-2023 and time 23:10:45 (Italy) in region 4 km NW Sant'Elia a Pianisi (CB)

A magnitude ML 1.6 earthquake occured in region: 4 km NW Sant'Elia a Pianisi (CB), on

  • 23-03-2023 22:10:45 (UTC)
  • 23-03-2023 23:10:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6580, 14.8570 at 20 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sant'Elia a Pianisi CB 4 1818 1818
Ripabottoni CB 5 514 2332
Monacilioni CB 6 523 2855
Provvidenti CB 7 119 2974
Campolieto CB 8 839 3813
Bonefro CB 8 1384 5197
Pietracatella CB 9 1375 6572
Macchia Valfortore CB 9 576 7148
Morrone del Sannio CB 9 587 7735
Casacalenda CB 9 2135 9870
San Giuliano di Puglia CB 10 1042 10912
Colletorto CB 10 1938 12850
Castellino del Biferno CB 12 545 13395
Montelongo CB 12 365 13760
San Giovanni in Galdo CB 12 580 14340
Toro CB 12 1391 15731
Carlantino FG 12 980 16711
Santa Croce di Magliano CB 13 4435 21146
Montorio nei Frentani CB 13 437 21583
Matrice CB 13 1115 22698
Petrella Tifernina CB 14 1170 23868
Campodipietra CB 14 2570 26438
Celenza Valfortore FG 15 1598 28036
Montagano CB 15 1086 29122
Lupara CB 16 505 29627
Rotello CB 16 1212 30839
Jelsi CB 16 1781 32620
Lucito CB 16 696 33316
Castelbottaccio CB 16 312 33628
Larino CB 17 6793 40421
Ripalimosani CB 17 3114 43535
Guardialfiera CB 17 1065 44600
Gambatesa CB 17 1464 46064
Riccia CB 19 5262 51326
Gildone CB 19 809 52135
San Marco la Catola FG 19 1012 53147
Civitacampomarano CB 19 417 53564
Limosano CB 20 768 54332
Campobasso CB 20 49431 103763

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of San Severo (53905 inhabitants)
59 Km N of Benevento (60091 inhabitants)
61 Km W of Foggia (151991 inhabitants)
78 Km NE of Caserta (76326 inhabitants)
83 Km N of Avellino (54857 inhabitants)
88 Km W of Manfredonia (57279 inhabitants)
89 Km NE of Acerra (59573 inhabitants)
93 Km NE of Aversa (53047 inhabitants)
94 Km NE of Afragola (65057 inhabitants)
96 Km SE of Chieti (51815 inhabitants)
96 Km NE of Casoria (77642 inhabitants)
98 Km W of Cerignola (58396 inhabitants)
98 Km NE of Giugliano in Campania (122974 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 1.6 2023-03-23
22:10:45		 41.6582 14.8568 20 2024-03-01
17:18:02		 Bollettino Sismico Italiano INGV 116089021
Reviewed
Rev100 		ML 1.7 2023-03-23
22:10:44		 41.6573 14.8793 27 2023-03-23
22:19:35		 Sala Sismica INGV-Roma 115674891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-23 22:10:45 ± 0.13
Latitude 41.6582 ± 0.0054
Longitude 14.8568 ± 0.0072
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116089021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 624
Semi-minor axis of confidence ellipse (meter) 258
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 330
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.81838
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 50
Type of magnitude ML
Reference to an origin 115674891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-23 22:19:35

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 116089021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-12-22 14:18:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNAL.HHZ. 2023-03-23T22:11:11.59 0.6 undecidable manual S 160 86.4468 97 0.48 40
IV.INTR.HHZ. 2023-03-23T22:11:11.48 0.6 undecidable manual S 297 87.9453 97 -0.03 44
IV.LPEL.HHZ. 2023-03-23T22:11:07.41 1.0 undecidable manual S 308 70.374 99 0.53 20
IV.RNI2.HHZ. 2023-03-23T22:11:04.45 0.6 undecidable manual S 275 58.5969 101 0.68 38
OT.OT14.EHZ. 2023-03-23T22:11:01.33 0.3 undecidable manual P 73 90.8424 97 0.39 61
IV.SGG.HNZ. 2023-03-23T22:11:01.57 0.6 undecidable manual S 233 49.8168 104 0.09 46
OT.OT12.EHZ. 2023-03-23T22:11:00.74 0.3 undecidable manual P 92 87.1461 97 0.37 62
IV.SNAL.HHZ. 2023-03-23T22:10:59.44 0.1 undecidable manual P 160 86.4468 97 -0.82 70
IV.INTR.HHZ. 2023-03-23T22:10:59.72 0.1 undecidable manual P 297 87.9453 97 -0.77 72
IV.SGRT.HHZ. 2023-03-23T22:10:58.70 0.3 undecidable manual P 81 74.2701 98 0.3 64
IV.SACR.HHZ. 2023-03-23T22:10:57.25 0.3 undecidable manual S 203 31.5462 114 0.4 67
IV.LPEL.HHZ. 2023-03-23T22:10:57.44 0.1 undecidable manual P 308 70.374 99 -0.38 85
OT.OT16.EHN. 2023-03-23T22:10:57.04 0.3 undecidable manual S 53 32.4453 113 -0.05 72
IT.GLNS.HNZ. 2023-03-23T22:10:57.03 0.6 undecidable manual S 10 28.6491 117 0.88 38
IV.RNI2.HHZ. 2023-03-23T22:10:56.16 0.3 undecidable manual P 275 58.5969 101 0.14 68
IT.PLTA.HNN. 2023-03-23T22:10:56.01 0.6 undecidable manual S 348 25.9518 120 0.49 45
IV.BSSO.HHZ. 2023-03-23T22:10:55.69 0.3 undecidable manual S 240 25.1526 121 0.36 69
IV.SGG.HNZ. 2023-03-23T22:10:54.37 0.3 undecidable manual P 233 49.8168 104 -0.34 67
IV.MELA.HHZ. 2023-03-23T22:10:54.93 0.3 undecidable manual S 77 22.9548 124 0.08 74
IV.GATE.HHZ. 2023-03-23T22:10:53.61 0.6 undecidable manual S 165 16.6722 134 0.08 50
IT.LRNO.HNN. 2023-03-23T22:10:53.78 0.6 undecidable manual S 18 17.2716 133 0.13 49
IV.PABO.HHN. 2023-03-23T22:10:53.20 0.3 undecidable manual P 285 40.2264 108 -0.07 72
IV.MOCO.HNE. 2023-03-23T22:10:53.96 0.3 undecidable manual P 142 40.626 108 0.63 62
IV.CIGN.HHZ. 2023-03-23T22:10:52.03 0.6 undecidable manual S 96 3.996 167 0.19 50
IV.BSSO.HHZ. 2023-03-23T22:10:51.24 0.1 undecidable manual P 240 25.1526 121 0.1 97
IT.MCLF.HNE. 2023-03-23T22:10:51.81 1.0 undecidable manual P 357 27.0507 118 0.41 23
IT.GLNS.HNZ. 2023-03-23T22:10:51.69 0.3 undecidable manual P 10 28.6491 117 0.07 73
IV.SACR.HHZ. 2023-03-23T22:10:51.85 0.1 undecidable manual P 203 31.5462 114 -0.18 95
OT.OT16.EHN. 2023-03-23T22:10:51.89 0.1 undecidable manual P 53 32.4453 113 -0.27 92
IT.PLTA.HNN. 2023-03-23T22:10:51.30 0.3 undecidable manual P 348 25.9518 120 0.04 73
IV.GATE.HHZ. 2023-03-23T22:10:50.09 0.1 undecidable manual P 165 16.6722 134 -0.02 100
IT.LRNO.HNN. 2023-03-23T22:10:50.05 0.3 undecidable manual P 18 17.2716 133 -0.13 73
IV.MELA.HHZ. 2023-03-23T22:10:50.63 0.1 undecidable manual P 77 22.9548 124 -0.24 94
IV.CIGN.HHZ. 2023-03-23T22:10:48.11 0.1 undecidable manual P 96 3.996 167 -1.02 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CIGN.HHN. ML:2.4 0.002315 0.32 AML other m 2023-03-23T22:10:52.73
IV.CIGN.HHE. ML:2.5 0.0026349999999999998 0.3 AML other m 2023-03-23T22:10:54.46
IV.MELA.HNN. ML:1.9 0.00040274695000000005 0.4096 AML other m 2023-03-23T22:10:55.32
IV.MELA.HHN. ML:1.8 0.00033742629999999993 0.32 AML other m 2023-03-23T22:10:55.33
IV.MELA.HHE. ML:1.6 0.00021965215 0.1024 AML other m 2023-03-23T22:10:55.48
IV.BSSO.HNE. ML:1.8 0.000295095 0.2816 AML other m 2023-03-23T22:10:56.53
IV.BSSO.HHE. ML:1.8 0.00029707345 0.2816 AML other m 2023-03-23T22:10:56.53
IV.BSSO.HHN. ML:1.8 0.0002705 0.6 AML other m 2023-03-23T22:10:56.52
IV.BSSO.HNN. ML:1.8 0.0002745 0.6 AML other m 2023-03-23T22:10:56.82
IV.GATE.HHN. ML:1.5 0.00019585045 0.4352 AML other m 2023-03-23T22:10:57.13
IV.SACR.HNE. ML:1.3 0.000082672785 0.256 AML other m 2023-03-23T22:10:58.09
IV.SACR.HHE. ML:1.3 0.00007335 0.24 AML other m 2023-03-23T22:10:58.33
IV.SACR.HNN. ML:1.3 0.00008199084499999999 0.4608 AML other m 2023-03-23T22:10:59.32
IV.GATE.HHE. ML:1.7 0.00031915635 0.5504 AML other m 2023-03-23T22:10:59.35
IV.GATE.HNN. ML:1.5 0.00019248575 0.3328 AML other m 2023-03-23T22:11:01.71
IV.MELA.HNE. ML:2.0 0.0004499647 0.6784 AML other m 2023-03-23T22:11:03.37
IV.SGG.HHN. ML:1.3 0.0000479 0.36 AML other m 2023-03-23T22:11:03.13
IV.SGG.HHE. ML:1.3 0.0000434503 0.2816 AML other m 2023-03-23T22:11:04.67
IV.GATE.HNE. ML:1.7 0.0003364508 0.448 AML other m 2023-03-23T22:11:05.28
IV.RNI2.HHN. ML:1.3 0.000040116899999999995 0.3072 AML other m 2023-03-23T22:11:06.54
IV.RNI2.HHE. ML:1.4 0.00004269510999999999 0.2816 AML other m 2023-03-23T22:11:07.30
IV.SACR.HHN. ML:1.2 0.0000650452 0.5504 AML other m 2023-03-23T22:11:08.95
IV.INTR.HNN. ML:2.1 0.00015494279999999998 1.3088 AML other m 2023-03-23T22:11:09.74
IV.LPEL.HHN. ML:1.5 0.000053010979999999996 0.1536 AML other m 2023-03-23T22:11:09.82
IV.LPEL.HHE. ML:1.5 0.000055439025 0.1152 AML other m 2023-03-23T22:11:11.40
IV.SGRT.HNE. ML:1.5 0.00004250869 1.5392 AML other m 2023-03-23T22:11:12.20
IV.SGRT.HHE. ML:1.4 0.00003695 1.1 AML other m 2023-03-23T22:11:12.99
IV.SGRT.HNN. ML:1.3 0.000032017055000000006 0.4096 AML other m 2023-03-23T22:11:12.80
IV.SGRT.HHN. ML:1.1 0.0000181067135 0.128 AML other m 2023-03-23T22:11:14.33
OT.OT12.EHN. ML:1.6 0.000050933865 0.3712 AML other m 2023-03-23T22:11:14.91
OT.OT12.EHE. ML:1.5 0.000037199999999999996 0.46 AML other m 2023-03-23T22:11:14.60
IV.INTR.HHE. ML:1.1 0.000016566353000000003 0.2304 AML other m 2023-03-23T22:11:15.07
OT.OT14.EHN. ML:1.9 0.00009039349 1.5776 AML other m 2023-03-23T22:11:16.83
OT.OT14.EHE. ML:1.9 0.00007917570000000001 0.384 AML other m 2023-03-23T22:11:17.18
IV.RNI2.HNN. ML:2.3 0.0003888869675 0.4224 AML other m 2023-03-23T22:11:21.53
IV.RNI2.HNE. ML:2.3 0.00041001767 0.4224 AML other m 2023-03-23T22:11:21.53
IV.SNAL.HNE. ML:1.7 0.000056336079999999996 0.8736 AML other m 2023-03-23T22:11:23.61
IV.INTR.HNE. ML:2.0 0.000117127415 1.4752 AML other m 2023-03-23T22:11:24.02
IV.INTR.HHN. ML:1.5 0.000032618025 0.8448 AML other m 2023-03-23T22:11:28.50
IV.SNAL.HNN. ML:1.7 0.000056106085 1.0016 AML other m 2023-03-23T22:11:28.13
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