Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 30-07-2021 and time 00:58:36 (Italy) in region 5 km N Sant'Elia a Pianisi (CB)

A magnitude ML 1.2 earthquake occured in region: 5 km N Sant'Elia a Pianisi (CB), on

  • 29-07-2021 22:58:36 (UTC)
  • 30-07-2021 00:58:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6670, 14.8620 at 27 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
Sant'Elia a Pianisi CB 5 1818 1818
Ripabottoni CB 5 514 2332
Provvidenti CB 7 119 2451
Bonefro CB 7 1384 3835
Monacilioni CB 8 523 4358
Casacalenda CB 8 2135 6493
Campolieto CB 9 839 7332
Morrone del Sannio CB 9 587 7919
San Giuliano di Puglia CB 9 1042 8961
Macchia Valfortore CB 9 576 9537
Colletorto CB 9 1938 11475
Pietracatella CB 9 1375 12850
Montelongo CB 11 365 13215
Castellino del Biferno CB 12 545 13760
Montorio nei Frentani CB 12 437 14197
Santa Croce di Magliano CB 12 4435 18632
Carlantino FG 13 980 19612
San Giovanni in Galdo CB 13 580 20192
Toro CB 13 1391 21583
Matrice CB 14 1115 22698
Petrella Tifernina CB 14 1170 23868
Celenza Valfortore FG 15 1598 25466
Rotello CB 15 1212 26678
Lupara CB 15 505 27183
Campodipietra CB 15 2570 29753
Larino CB 16 6793 36546
Montagano CB 16 1086 37632
Castelbottaccio CB 16 312 37944
Lucito CB 16 696 38640
Guardialfiera CB 16 1065 39705
Jelsi CB 17 1781 41486
Ripalimosani CB 18 3114 44600
Gambatesa CB 18 1464 46064
Civitacampomarano CB 19 417 46481
San Marco la Catola FG 20 1012 47493
Riccia CB 20 5262 52755
Gildone CB 20 809 53564

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of San Severo (53905 inhabitants)
60 Km N of Benevento (60091 inhabitants)
61 Km W of Foggia (151991 inhabitants)
79 Km NE of Caserta (76326 inhabitants)
84 Km N of Avellino (54857 inhabitants)
88 Km W of Manfredonia (57279 inhabitants)
90 Km NE of Acerra (59573 inhabitants)
95 Km NE of Aversa (53047 inhabitants)
95 Km NE of Afragola (65057 inhabitants)
95 Km SE of Chieti (51815 inhabitants)
97 Km NE of Casoria (77642 inhabitants)
98 Km W of Cerignola (58396 inhabitants)
99 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
Reviewed
Rev100 		ML 1.2 2021-07-29
22:58:36		 41.6668 14.862 27 2021-07-29
23:05:56		 Sala Sismica INGV-Roma 93376711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-29 22:58:36 ± 0.15
Latitude 41.6668 ± 0.0054
Longitude 14.8620 ± 0.0060
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93376711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 668
Semi-minor axis of confidence ellipse (meter) 167
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 333
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53240
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 93376711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-29 23:05:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2021-07-29T22:58:58.33 3.0 negative manual Pn -0.04 0
IV.RNI2.HHZ. 2021-07-29T22:58:55.07 0.6 undecidable manual S 274 58.8966 109 0.09 46
IV.APRC.HHZ. 2021-07-29T22:58:54.73 0.6 undecidable manual S 80 57.2982 109 0.15 46
IV.MIDA.HNE. 2021-07-29T22:58:52.64 0.6 undecidable manual S 267 50.5161 112 -0.23 46
IV.SACR.HHZ. 2021-07-29T22:58:48.70 0.6 undecidable manual S 204 32.5452 124 0.07 49
OT.OT16.EHZ. 2021-07-29T22:58:48.37 0.6 undecidable manual S 54 31.5462 125 -0.05 49
IV.TRIV.HHZ. 2021-07-29T22:58:48.26 0.6 undecidable manual S 293 28.0497 129 0.58 44
IV.BSSO.HHZ. 2021-07-29T22:58:47.28 0.6 undecidable manual S 239 25.9518 131 0.04 50
IV.APRC.HHZ. 2021-07-29T22:58:47.08 0.6 undecidable manual P 80 57.2982 109 0.31 45
IT.GLNS.HNZ. 2021-07-29T22:58:47.94 0.6 undecidable manual S 10 27.5502 129 0.37 47
IV.RNI2.HHZ. 2021-07-29T22:58:47.13 0.3 undecidable manual P 274 58.8966 109 0.13 69
IV.GATE.HHZ. 2021-07-29T22:58:46.14 0.6 undecidable manual S 167 17.4714 143 0.44 47
IV.VAGA.HHZ. 2021-07-29T22:58:46.66 0.3 undecidable manual P 242 59.0964 109 -0.37 66
IV.MELA.HHZ. 2021-07-29T22:58:46.36 0.6 undecidable manual S 79 22.3554 136 -0.19 48
IV.MIDA.HNE. 2021-07-29T22:58:45.57 0.3 undecidable manual P 267 50.5161 112 -0.21 70
IT.LRNO.HNE. 2021-07-29T22:58:45.18 0.6 undecidable manual S 17 16.2726 146 -0.33 47
OT.OT16.EHZ. 2021-07-29T22:58:43.08 0.3 undecidable manual P 54 31.5462 125 -0.13 73
IV.SACR.HHZ. 2021-07-29T22:58:43.21 0.1 undecidable manual P 204 32.5452 124 -0.12 97
IV.MELA.HHZ. 2021-07-29T22:58:42.08 0.1 undecidable manual P 79 22.3554 136 -0.05 100
IV.TRIV.HHZ. 2021-07-29T22:58:42.76 0.1 undecidable manual P 293 28.0497 129 -0.02 100
IV.GATE.HHZ. 2021-07-29T22:58:42.18 0.3 undecidable manual P 167 17.4714 143 0.54 68
IV.BSSO.HHZ. 2021-07-29T22:58:42.40 0.1 undecidable manual P 239 25.9518 131 -0.13 98
IT.GLNS.HNZ. 2021-07-29T22:58:42.79 0.3 undecidable manual P 10 27.5502 129 0.07 74
IT.LRNO.HNE. 2021-07-29T22:58:41.12 0.3 undecidable manual P 17 16.2726 146 -0.41 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MELA.HHN. ML:1.7 0.000193 0.36 AML other m 2021-07-29T22:58:46.71
IV.MELA.HHE. ML:1.6 0.00016 0.44 AML other m 2021-07-29T22:58:47.22
IV.BSSO.HHN. ML:1.2 0.0000544 0.22 AML other m 2021-07-29T22:58:47.45
IV.BSSO.HHE. ML:1.2 0.000062 0.74 AML other m 2021-07-29T22:58:47.51
IV.GATE.HHE. ML:1.3 0.00009104999999999999 0.8 AML other m 2021-07-29T22:58:47.88
IV.TRIV.HHN. ML:1.2 0.0000589 0.58 AML other m 2021-07-29T22:58:48.72
IV.TRIV.HHE. ML:1.2 0.00006455 0.56 AML other m 2021-07-29T22:58:48.80
IV.SACR.HHN. ML:1.0 0.0000343 0.54 AML other m 2021-07-29T22:58:48.98
IV.SACR.HHE. ML:1.0 0.00003245 1.08 AML other m 2021-07-29T22:58:49.28
IV.GATE.HHN. ML:1.2 0.0000759 0.82 AML other m 2021-07-29T22:58:50.58
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