Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 09-08-2021 and time 20:51:31 (UTC) in region 3 km W Sassinoro (BN)

A magnitude ML 2.2 earthquake occured in region: 3 km W Sassinoro (BN), on

  • 09-08-2021 20:51:31 (UTC)
  • 09-08-2021 22:51:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.3770, 14.6280 at 14 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
Sassinoro BN 3 618 618
Sepino CB 4 1964 2582
Morcone BN 5 4932 7514
Pietraroja BN 7 545 8059
Santa Croce del Sannio BN 9 927 8986
San Giuliano del Sannio CB 9 1029 10015
Guardiaregia CB 10 801 10816
Cercepiccola CB 10 681 11497
Cusano Mutri BN 11 4091 15588
Pontelandolfo BN 11 2167 17755
Cerreto Sannita BN 12 3940 21695
Cercemaggiore CB 12 3777 25472
San Lupo BN 13 801 26273
Campochiaro CB 13 646 26919
Campolattaro BN 13 1072 27991
San Lorenzello BN 13 2227 30218
Vinchiaturo CB 14 3324 33542
Guardia Sanframondi BN 14 5078 38620
San Lorenzo Maggiore BN 14 2154 40774
Casalduni BN 14 1378 42152
San Polo Matese CB 15 470 42622
Castelpagano BN 15 1483 44105
Circello BN 15 2388 46493
Mirabello Sannitico CB 16 2180 48673
Faicchio BN 16 3634 52307
Castelvenere BN 17 2562 54869
Colle Sannita BN 17 2431 57300
Colle d'Anchise CB 17 807 58107
Gioia Sannitica CE 18 3638 61745
Bojano CB 18 8058 69803
Gildone CB 18 809 70612
Ferrazzano CB 18 3344 73956
Baranello CB 18 2673 76629
Fragneto Monforte BN 18 1840 78469
Fragneto l'Abate BN 19 1049 79518
Ponte BN 19 2580 82098
Reino BN 19 1210 83308
San Salvatore Telesino BN 19 3999 87307
Telese Terme BN 19 7486 94793

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Benevento (60091 inhabitants)
42 Km NE of Caserta (76326 inhabitants)
52 Km NE of Acerra (59573 inhabitants)
53 Km N of Avellino (54857 inhabitants)
57 Km NE of Afragola (65057 inhabitants)
57 Km NE of Aversa (53047 inhabitants)
59 Km NE of Casoria (77642 inhabitants)
61 Km NE of Giugliano in Campania (122974 inhabitants)
65 Km NE of Marano di Napoli (59874 inhabitants)
66 Km NE of Portici (55274 inhabitants)
67 Km NE of Ercolano (53709 inhabitants)
68 Km NE of Napoli (974074 inhabitants)
69 Km NE of Torre del Greco (86275 inhabitants)
70 Km N of Scafati (50787 inhabitants)
72 Km W of San Severo (53905 inhabitants)
74 Km NE of Pozzuoli (81661 inhabitants)
75 Km N of Cava de' Tirreni (53659 inhabitants)
77 Km N of Castellammare di Stabia (66466 inhabitants)
77 Km W of Foggia (151991 inhabitants)
78 Km N of Salerno (135261 inhabitants)
91 Km NW of Battipaglia (50786 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 2.2 2021-08-09
20:51:31		 41.3768 14.6282 14 2021-12-29
11:12:30		 Bollettino Sismico Italiano INGV 95373541
Reviewed
Rev100 		ML 2.2 2021-08-09
20:51:31		 41.3722 14.6403 12 2021-08-09
20:55:32		 Sala Sismica INGV-Roma 93897981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-09 20:51:31 ± 0.1
Latitude 41.3768 ± 0.0054
Longitude 14.6282 ± 0.0084
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95373541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 746
Semi-minor axis of confidence ellipse (meter) 187
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 93897981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-09 20:55:32

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 95373541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-15 07:18:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2021-08-09T20:51:44.40 0.6 undecidable manual S 135 39.9267 96 0.23 46
IX.BENI.HNZ.01 2021-08-09T20:51:41.90 0.3 undecidable manual S 156 29.8479 99 0.4 68
IV.BIOG.HHZ. 2021-08-09T20:51:40.25 0.3 undecidable manual P 115 46.4202 94 0.66 61
IT.PLTA.HNN. 2021-08-09T20:51:40.74 0.3 undecidable manual P 13 58.0974 93 -0.65 60
IV.PSB1.HHZ. 2021-08-09T20:51:39.60 0.3 undecidable manual S 138 22.8549 104 -0.04 75
IV.TRIV.HHN. 2021-08-09T20:51:39.52 0.1 negative manual P 352 43.7229 95 0.34 91
IV.VITU.HHZ. 2021-08-09T20:51:39.20 0.3 undecidable manual S 180 21.4674 106 -0.09 75
IV.SGG.HHZ. 2021-08-09T20:51:39.30 0.3 undecidable manual S 273 20.7681 107 0.18 73
IV.MOCO.HNE. 2021-08-09T20:51:39.55 0.3 undecidable manual P 91 44.1225 95 0.31 68
IV.CIGN.HHN. 2021-08-09T20:51:38.11 0.6 undecidable manual P 37 38.4282 96 -0.26 46
IV.BSSO.HHZ. 2021-08-09T20:51:38.90 0.3 undecidable manual S 351 18.9699 110 0.23 73
IV.MRB1.HHZ. 2021-08-09T20:51:38.45 0.3 undecidable manual P 135 39.9267 96 -0.15 71
IV.TST01.HHZ. 2021-08-09T20:51:38.99 0.6 undecidable manual P 334 45.9207 95 -0.52 43
IV.MIDA.HNZ. 2021-08-09T20:51:38.76 0.1 undecidable manual P 314 42.8238 95 -0.28 92
IV.PAOL.HHN. 2021-08-09T20:51:37.86 0.3 undecidable manual P 188 38.628 96 -0.55 66
IV.GATE.HNN. 2021-08-09T20:51:37.10 0.6 undecidable manual P 57 27.9498 100 0.34 47
IV.VAGA.HHZ. 2021-08-09T20:51:37.64 0.3 undecidable manual P 278 33.0447 97 0.09 73
IX.BENI.HNZ.01 2021-08-09T20:51:37.13 0.3 undecidable manual P 156 29.8479 99 0.07 73
IV.PTRJ.HNZ. 2021-08-09T20:51:36.70 0.3 undecidable manual S 260 8.3805 140 0.38 71
IV.SGG.HHZ. 2021-08-09T20:51:35.75 0.1 undecidable manual P 273 20.7681 107 0.06 100
IV.SACR.HHZ. 2021-08-09T20:51:35.90 0.3 undecidable manual S 70 6.8931 147 -0.18 75
IV.PSB1.HHZ. 2021-08-09T20:51:35.75 0.3 undecidable manual P 138 22.8549 104 -0.25 72
IV.VITU.HHZ. 2021-08-09T20:51:35.43 0.1 negative manual P 180 21.4674 106 -0.36 94
IV.BSSO.HHZ. 2021-08-09T20:51:35.81 0.1 undecidable manual P 351 18.9699 110 0.38 94
IV.SACR.HHZ. 2021-08-09T20:51:33.58 0.3 undecidable manual P 70 6.8931 147 -0.36 72
IV.PTRJ.HNZ. 2021-08-09T20:51:33.91 0.1 positive manual P 260 8.3805 140 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTRJ.HNE. ML:2.4 0.002978317 0.4096 AML other m 2021-08-09T20:51:36.39
IV.SACR.HHE. ML:2.4 0.002627447 0.192 AML other m 2021-08-09T20:51:36.43
IV.SACR.HNE. ML:2.3 0.0025499999999999997 0.18 AML other m 2021-08-09T20:51:36.43
IV.SACR.HHN. ML:2.4 0.0027199999999999998 0.16 AML other m 2021-08-09T20:51:36.48
IV.SACR.HNN. ML:2.3 0.00247626 0.1664 AML other m 2021-08-09T20:51:36.49
IV.PTRJ.HHN. ML:2.2 0.001655 0.4 AML other m 2021-08-09T20:51:37.86
IV.PTRJ.HNN. ML:2.4 0.0027350000000000005 0.26 AML other m 2021-08-09T20:51:37.66
IV.PTRJ.HHE. ML:0.9 0.00007939999999999999 0.38 AML other m 2021-08-09T20:51:37.86
IV.VITU.HHE. ML:2.4 0.0017830559999999999 1.7184 AML other m 2021-08-09T20:51:40.91
IV.PSB1.HNN. ML:2.2 0.0008709704 0.384 AML other m 2021-08-09T20:51:40.67
IV.PSB1.HHN. ML:2.1 0.0008430341 0.3968 AML other m 2021-08-09T20:51:40.48
IV.BSSO.HHE. ML:2.0 0.0007289448000000001 0.2176 AML other m 2021-08-09T20:51:40.52
IV.PSB1.HHE. ML:2.4 0.0014427919999999998 0.32 AML other m 2021-08-09T20:51:40.61
IV.PSB1.HNE. ML:2.4 0.001355 0.32 AML other m 2021-08-09T20:51:40.61
IV.VITU.HNE. ML:2.1 0.00075645795 0.192 AML other m 2021-08-09T20:51:40.90
IV.VITU.HHN. ML:2.5 0.002145 0.26 AML other m 2021-08-09T20:51:41.39
IV.VITU.HNN. ML:2.5 0.00206317 0.2816 AML other m 2021-08-09T20:51:41.40
IV.BSSO.HHN. ML:2.0 0.0007685392 0.2816 AML other m 2021-08-09T20:51:42.64
IV.BSSO.HNE. ML:2.0 0.00067120305 0.2304 AML other m 2021-08-09T20:51:42.76
IV.BSSO.HNN. ML:2.0 0.0007218865 0.2816 AML other m 2021-08-09T20:51:42.64
IV.SGG.HHE. ML:2.4 0.0014550000000000001 0.42 AML other m 2021-08-09T20:51:43.14
IV.SGG.HNE. ML:2.3 0.001315 0.42 AML other m 2021-08-09T20:51:43.14
IV.SGG.HHN. ML:2.4 0.0015174544999999998 0.4608 AML other m 2021-08-09T20:51:44.19
IV.SGG.HNN. ML:2.3 0.001385 0.44 AML other m 2021-08-09T20:51:44.21
IV.VAGA.HNE. ML:2.1 0.00056809905 0.2048 AML other m 2021-08-09T20:51:45.98
IV.VAGA.HHE. ML:2.1 0.0005745 1.7 AML other m 2021-08-09T20:51:46.94
IV.VAGA.HHN. ML:2.5 0.0012409654999999999 0.3712 AML other m 2021-08-09T20:51:48.36
IV.VAGA.HNN. ML:2.4 0.0011532755 0.3712 AML other m 2021-08-09T20:51:48.36
IV.MRB1.HNE. ML:2.2 0.00058568705 0.32 AML other m 2021-08-09T20:51:50.27
IV.MRB1.HHE. ML:2.2 0.00061478855 0.32 AML other m 2021-08-09T20:51:50.27
IV.MRB1.HHN. ML:2.2 0.00062841055 0.4352 AML other m 2021-08-09T20:51:55.44
IV.MRB1.HNN. ML:2.2 0.0005264824 0.4352 AML other m 2021-08-09T20:51:55.45
IV.PAOL.HNE. ML:1.9 0.00025757600000000003 0.4608 AML other m 2021-08-09T20:51:44.40
IV.PAOL.HHN. ML:1.9 0.000248916 0.3072 AML other m 2021-08-09T20:51:44.52
IV.PAOL.HHE. ML:1.9 0.0002684394 0.2176 AML other m 2021-08-09T20:51:45.85
IV.MIDA.HNE. ML:1.8 0.00020843974999999997 0.6144 AML other m 2021-08-09T20:51:52.97
IV.MIDA.HHE. ML:1.8 0.0001800103 0.3968 AML other m 2021-08-09T20:51:49.91
IV.MIDA.HHN. ML:1.8 0.00021058709999999996 0.5248 AML other m 2021-08-09T20:51:54.78
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
Waveforms Seismic signals in miniseed + resp format Download