Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-09-2017 and time 02:27:51 (Italy) in region 2 km SW San Massimo (CB)

A magnitude ML 2.1 earthquake occured in region: 2 km SW San Massimo (CB), on

  • 26-09-2017 00:27:51 (UTC)
  • 26-09-2017 02:27:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4820, 14.3940 at 9 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
San Massimo CB 2 855 855
Roccamandolfi IS 4 938 1793
Cantalupo nel Sannio IS 5 739 2532
Bojano CB 7 8058 10590
Santa Maria del Molise IS 8 665 11255
San Polo Matese CB 9 470 11725
Macchiagodena IS 9 1854 13579
Castelpizzuto IS 10 155 13734
Castelpetroso IS 10 1680 15414
Campochiaro CB 10 646 16060
Spinete CB 11 1320 17380
San Gregorio Matese CE 11 988 18368
Colle d'Anchise CB 11 807 19175
Letino CE 12 712 19887
Sant'Elena Sannita IS 13 275 20162
Castello del Matese CE 13 1494 21656
Longano IS 13 690 22346
Valle Agricola CE 13 890 23236
Guardiaregia CB 13 801 24037
Carpinone IS 14 1157 25194
Piedimonte Matese CE 14 11297 36491
Gallo Matese CE 14 579 37070
Frosolone IS 14 3170 40240
Pettoranello del Molise IS 14 460 40700
Baranello CB 15 2673 43373
San Potito Sannitico CE 16 1925 45298
Sant'Agapito IS 16 1496 46794
Casalciprano CB 16 564 47358
Vinchiaturo CB 16 3324 50682
Busso CB 16 1273 51955
Prata Sannita CE 17 1502 53457
Pesche IS 17 1661 55118
Sant'Angelo d'Alife CE 17 2270 57388
Raviscanina CE 18 1319 58707
Alife CE 18 7616 66323
Fontegreca CE 18 811 67134
Sessano del Molise IS 18 727 67861
Isernia IS 18 21842 89703
Cusano Mutri BN 19 4091 93794
Molise CB 19 167 93961
Ailano CE 19 1369 95330
Monteroduni IS 19 2264 97594
Pratella CE 20 1565 99159
Pietraroja BN 20 545 99704
Oratino CB 20 1641 101345
Ciorlano CE 20 426 101771

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Caserta (76326 inhabitants)
51 Km NW of Benevento (60091 inhabitants)
59 Km N of Aversa (53047 inhabitants)
60 Km N of Acerra (59573 inhabitants)
63 Km N of Afragola (65057 inhabitants)
64 Km N of Giugliano in Campania (122974 inhabitants)
65 Km N of Casoria (77642 inhabitants)
67 Km N of Marano di Napoli (59874 inhabitants)
71 Km NW of Avellino (54857 inhabitants)
72 Km N of Napoli (974074 inhabitants)
73 Km N of Portici (55274 inhabitants)
75 Km N of Ercolano (53709 inhabitants)
75 Km NE of Pozzuoli (81661 inhabitants)
77 Km N of Torre del Greco (86275 inhabitants)
82 Km N of Scafati (50787 inhabitants)
85 Km W of San Severo (53905 inhabitants)
88 Km N of Castellammare di Stabia (66466 inhabitants)
91 Km N of Cava de' Tirreni (53659 inhabitants)
94 Km NW of Salerno (135261 inhabitants)
96 Km W of Foggia (151991 inhabitants)
99 Km S of Chieti (51815 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 2.1 2017-09-26
00:27:51		 41.4817 14.3942 9 2018-09-04
09:05:55		 Bollettino Sismico Italiano INGV 50550141
Reviewed
Rev100 		ML 2.1 2017-09-26
00:27:51		 41.4808 14.4033 9 2017-09-26
01:17:53		 Sala Sismica INGV-Roma 50447671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-26 00:27:51 ± 0.05
Latitude 41.4817 ± 0.0036
Longitude 14.3942 ± 0.0036
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50550141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 331
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.98925
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 50550141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-29 10:05:33

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 47
Type of magnitude ML
Reference to an origin 50447671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-09-26 01:17:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2017-09-26T00:28:32.29 3.0 undecidable manual S -0.42 0
IV.ASSB.HHZ. 2017-09-26T00:28:26.69 3.0 negative manual Pn 1.7 0
IV.MC2.EHZ. 2017-09-26T00:28:24.30 3.0 undecidable manual Pg 3.95 0
IV.FDMO.HHZ. 2017-09-26T00:28:22.84 3.0 undecidable manual Pn 0.49 0
IV.CSP1.EHZ. 2017-09-26T00:28:22.11 3.0 positive manual Pn -0.28 0
IV.VVLD.HHZ. 2017-09-26T00:28:15.29 0.3 undecidable manual S 304 77.0673 50 0.48 60
IV.LRP.EHZ. 2017-09-26T00:28:13.30 0.6 undecidable manual S 286 69.4749 50 0.5 41
IV.INTR.HHZ. 2017-09-26T00:28:13.77 0.6 undecidable manual S 326 71.373 50 0.46 41
IV.MELA.HNN. 2017-09-26T00:28:12.11 1.0 undecidable manual S 67 65.6898 50 0.33 21
IV.LPEL.HHE. 2017-09-26T00:28:11.68 1.0 undecidable manual S 345 65.0904 50 0.06 23
IV.POFI.HNE. 2017-09-26T00:28:11.28 0.6 undecidable manual S 295 62.3931 50 0.39 42
IV.FAGN.HHZ. 2017-09-26T00:28:10.07 0.6 undecidable manual P 323 109.8123 50 0.17 40
IV.T0110.HHZ. 2017-09-26T00:28:07.42 1.0 undecidable manual P 329 97.4247 50 -0.58 19
IV.CAFE.HHN. 2017-09-26T00:28:06.07 0.1 undecidable manual P 125 86.4468 50 -0.23 83
IV.SNAL.HNE. 2017-09-26T00:28:06.78 0.3 undecidable manual P 132 91.8414 50 -0.36 60
IV.SGTA.HHZ. 2017-09-26T00:28:06.59 0.1 undecidable manual P 115 89.5437 50 -0.2 83
IV.VVLD.HHZ. 2017-09-26T00:28:04.42 0.1 undecidable manual P 304 77.0673 50 -0.44 81
IV.PIGN.HHZ. 2017-09-26T00:28:03.83 1.0 undecidable manual S 210 35.9418 50 -0.02 24
IV.INTR.HHZ. 2017-09-26T00:28:03.19 0.3 undecidable manual P 326 71.373 50 -0.8 54
IV.RNI2.HHZ. 2017-09-26T00:28:03.01 0.3 undecidable manual S 321 31.746 105 0.34 68
IV.LRP.EHZ. 2017-09-26T00:28:03.54 0.3 undecidable manual P 286 69.4749 50 -0.16 66
IV.MOCO.HNE. 2017-09-26T00:28:03.36 0.1 undecidable manual P 101 64.6908 50 0.4 84
IV.TRIV.HHZ. 2017-09-26T00:28:03.25 0.6 undecidable manual S 22 34.1436 50 -0.12 47
IV.CERA.HHZ. 2017-09-26T00:28:03.45 0.6 undecidable manual S 293 33.744 50 0.19 46
IV.MRB1.HHZ. 2017-09-26T00:28:02.68 0.1 positive manual P 130 62.1933 50 0.1 90
IV.LPEL.HHE. 2017-09-26T00:28:02.71 0.3 undecidable manual P 345 65.0904 50 -0.31 64
IV.POFI.HNE. 2017-09-26T00:28:02.22 0.1 undecidable manual P 295 62.3931 50 -0.37 85
IV.MELA.HNN. 2017-09-26T00:28:02.91 0.6 undecidable manual P 67 65.6898 50 -0.2 44
IV.MODR.HHZ. 2017-09-26T00:28:02.24 0.6 undecidable manual P 229 56.8986 50 0.49 42
IV.SACR.HHZ. 2017-09-26T00:28:01.55 0.6 undecidable manual S 110 27.5502 107 0.28 46
IV.GATE.HNN. 2017-09-26T00:28:00.09 0.1 undecidable manual P 85 43.0236 50 0.48 86
IV.CIGN.HHZ. 2017-09-26T00:28:00.23 0.1 negative manual P 66 46.5201 50 0.08 93
IV.MCI.EHE. 2017-09-26T00:28:00.13 1.0 undecidable manual P 271 48.3183 50 -0.3 22
IV.MIDA.HHZ. 2017-09-26T00:27:59.40 0.6 undecidable manual S 327 21.2676 112 0.18 48
IV.CERA.HHZ. 2017-09-26T00:27:58.22 0.1 undecidable manual P 293 33.744 50 0.03 96
IV.PIGN.HHZ. 2017-09-26T00:27:58.61 0.1 undecidable manual P 210 35.9418 50 0.08 95
IV.BSSO.HHN. 2017-09-26T00:27:58.55 0.6 undecidable manual S 67 18.0708 116 0.34 46
IV.VITU.HHZ. 2017-09-26T00:27:58.92 0.1 negative manual P 149 38.5281 50 0 96
IV.TRIV.HHZ. 2017-09-26T00:27:57.94 0.1 positive manual P 22 34.1436 50 -0.31 90
IV.VAGA.HHZ. 2017-09-26T00:27:57.52 0.3 undecidable manual S 241 15.1737 120 0.19 72
IV.PTRJ.HHZ. 2017-09-26T00:27:57.87 0.3 undecidable manual S 139 17.1717 117 -0.07 73
IV.SACR.HHZ. 2017-09-26T00:27:57.08 0.1 undecidable manual P 110 27.5502 107 0.04 97
IV.RNI2.HHZ. 2017-09-26T00:27:57.49 0.1 positive manual P 321 31.746 105 -0.36 90
IV.SGG.HHZ. 2017-09-26T00:27:56.00 0.3 undecidable manual S 187 10.5783 129 -0.01 75
IV.BSSO.HHN. 2017-09-26T00:27:55.38 0.1 positive manual P 67 18.0708 116 0.11 97
IV.MIDA.HHZ. 2017-09-26T00:27:55.79 0.1 undecidable manual P 327 21.2676 112 -0.06 97
IV.VAGA.HHZ. 2017-09-26T00:27:54.74 0.1 positive manual P 241 15.1737 120 -0.02 99
IV.PTRJ.HHZ. 2017-09-26T00:27:54.96 0.1 positive manual P 139 17.1717 117 -0.15 96
IV.SGG.HHZ. 2017-09-26T00:27:53.98 0.1 positive manual P 187 10.5783 129 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGG.HHN. ML:2.5 0.004125 0.38 AML other m 2017-09-26T00:27:56.74
IV.PTRJ.HNE. ML:2.5 0.00292 0.56 AML other m 2017-09-26T00:27:59.54
IV.PTRJ.HNN. ML:2.4 0.002375 0.36 AML other m 2017-09-26T00:28:01.23
IV.MIDA.HNN. ML:2.1 0.0009795000000000001 0.58 AML other m 2017-09-26T00:28:01.52
IV.VAGA.HNN. ML:2.7 0.004730000000000001 0.3 AML other m 2017-09-26T00:28:01.73
IV.VAGA.HHN. ML:2.7 0.004955 0.3 AML other m 2017-09-26T00:28:01.73
IV.VAGA.HNE. ML:2.5 0.0031799999999999997 1.78 AML other m 2017-09-26T00:28:01.98
IV.VAGA.HHE. ML:2.5 0.003375 1.78 AML other m 2017-09-26T00:28:01.98
IV.SGG.HHE. ML:2.4 0.003625 0.46 AML other m 2017-09-26T00:28:02.26
IV.RNI2.HHE. ML:2.3 0.00087 0.44 AML other m 2017-09-26T00:28:03.61
IV.RNI2.HNE. ML:2.2 0.000814 0.46 AML other m 2017-09-26T00:28:03.61
IV.MIDA.HHE. ML:2.3 0.0014249999999999998 1.06 AML other m 2017-09-26T00:28:04.55
IV.MIDA.HNE. ML:2.3 0.0013900000000000002 1.06 AML other m 2017-09-26T00:28:04.02
IV.MIDA.HHN. ML:2.2 0.001023 1.1 AML other m 2017-09-26T00:28:04.40
IV.RNI2.HNN. ML:2.0 0.0005245 1.68 AML other m 2017-09-26T00:28:05.99
IV.RNI2.HHN. ML:2.0 0.0005304999999999999 1.7 AML other m 2017-09-26T00:28:05.99
IV.CERA.HNN. ML:2.2 0.000662 0.66 AML other m 2017-09-26T00:28:09.27
IV.CERA.HHN. ML:2.2 0.0006835 0.64 AML other m 2017-09-26T00:28:09.59
IV.VITU.HHE. ML:2.2 0.000647 0.34 AML other m 2017-09-26T00:28:09.31
IV.SACR.HHE. ML:2.0 0.000544 0.48 AML other m 2017-09-26T00:28:10.49
IV.SACR.HHN. ML:2.1 0.0006515 0.62 AML other m 2017-09-26T00:28:10.33
IV.PIGN.HHE. ML:1.7 0.00020800000000000001 0.62 AML other m 2017-09-26T00:28:10.68
IV.CERA.HHE. ML:2.3 0.000915 1.54 AML other m 2017-09-26T00:28:11.11
IV.CERA.HNE. ML:2.3 0.0008954999999999999 1.52 AML other m 2017-09-26T00:28:11.12
IV.TRIV.HHE. ML:2.1 0.0005745 0.88 AML other m 2017-09-26T00:28:11.28
IV.TRIV.HNE. ML:2.1 0.0005515 0.86 AML other m 2017-09-26T00:28:11.29
IV.VITU.HNE. ML:2.0 0.000371 0.48 AML other m 2017-09-26T00:28:11.98
IV.PIGN.HNE. ML:1.7 0.000213 0.48 AML other m 2017-09-26T00:28:12.78
IV.PIGN.HHN. ML:1.7 0.000192 0.52 AML other m 2017-09-26T00:28:12.88
IV.TRIV.HHN. ML:2.0 0.0004005 0.6 AML other m 2017-09-26T00:28:14.33
IV.TRIV.HNN. ML:2.0 0.0004 0.58 AML other m 2017-09-26T00:28:14.04
IV.CIGN.HHN. ML:1.7 0.000161 0.42 AML other m 2017-09-26T00:28:14.23
IV.VITU.HHN. ML:2.5 0.0010550000000000002 0.42 AML other m 2017-09-26T00:28:15.51
IV.VITU.HNN. ML:2.4 0.0009885 0.42 AML other m 2017-09-26T00:28:15.52
IV.LRP.EHE. ML:1.7 0.0000892 1.12 AML other m 2017-09-26T00:28:15.08
IV.MODR.HHE. ML:1.9 0.00017299999999999998 1.1 AML other m 2017-09-26T00:28:17.32
IV.PIGN.HNN. ML:1.8 0.0002575 0.72 AML other m 2017-09-26T00:28:19.56
IV.LRP.EHN. ML:1.8 0.00009465 0.46 AML other m 2017-09-26T00:28:20.28
IV.MODR.HHN. ML:1.8 0.00013550000000000001 0.66 AML other m 2017-09-26T00:28:20.49
IV.MRB1.HNE. ML:2.1 0.00023549999999999998 0.54 AML other m 2017-09-26T00:28:21.29
IV.CIGN.HHE. ML:1.7 0.0001555 1.28 AML other m 2017-09-26T00:28:22.08
IV.INTR.HHE. ML:1.7 0.00007475000000000001 1.32 AML other m 2017-09-26T00:28:22.33
IV.INTR.HHN. ML:1.9 0.00013350000000000002 1.56 AML other m 2017-09-26T00:28:23.04
IV.MRB1.HHE. ML:2.1 0.00022600000000000002 0.4 AML other m 2017-09-26T00:28:23.53
IV.MRB1.HNN. ML:2.3 0.0003715 1.34 AML other m 2017-09-26T00:28:24.03
IV.MRB1.HHN. ML:2.2 0.000324 0.5 AML other m 2017-09-26T00:28:24.81
IV.VIVA.HHE. ML:2.4 0.0001365 0.48 AML other m 2017-09-26T00:28:34.22
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