Earthquake with magnitude of ML 2.1 on date 18-04-2018 and time 09:25:38 (UTC) in region 1 km S Alvignano (CE)

A magnitude ML 2.1 earthquake occured in region: 1 km S Alvignano (CE), on

  • 18-04-2018 09:25:38 (UTC)
  • 18-04-2018 11:25:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.2370, 14.3390 at 8 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Alvignano CE 1 4824 4824
Liberi CE 5 1153 5977
Dragoni CE 5 2108 8085
Castel di Sasso CE 6 1171 9256
Ruviano CE 7 1655 10911
Caiazzo CE 7 5595 16506
Piana di Monte Verna CE 8 2390 18896
Pontelatone CE 9 1703 20599
Formicola CE 9 1488 22087
Puglianello BN 10 1349 23436
Alife CE 10 7616 31052
Baia e Latina CE 10 2197 33249
Roccaromana CE 11 856 34105
Amorosi BN 11 2797 36902
Gioia Sannitica CE 11 3638 40540
Castel Campagnano CE 11 1581 42121
Limatola BN 12 4073 46194
Camigliano CE 12 1943 48137
San Potito Sannitico CE 12 1925 50062
Bellona CE 12 6053 56115
Giano Vetusto CE 13 647 56762
Faicchio BN 13 3634 60396
Vitulazio CE 13 7420 67816
Pastorano CE 13 3033 70849
Castel Morrone CE 13 3858 74707
San Salvatore Telesino BN 13 3999 78706
Pietramelara CE 13 4722 83428
Piedimonte Matese CE 14 11297 94725
Dugenta BN 15 2798 97523
Pignataro Maggiore CE 15 6084 103607
Castello del Matese CE 15 1494 105101
Rocchetta e Croce CE 15 460 105561
Sant'Angelo d'Alife CE 16 2270 107831
Riardo CE 16 2321 110152
Melizzano BN 16 1858 112010
Telese Terme BN 16 7486 119496
San Gregorio Matese CE 17 988 120484
Raviscanina CE 17 1319 121803
Casagiove CE 17 13651 135454
San Prisco CE 17 12345 147799
Calvi Risorta CE 18 5707 153506
Castelvenere BN 18 2562 156068
San Lorenzello BN 18 2227 158295
Pietravairano CE 18 2984 161279
Capua CE 18 18820 180099
Caserta CE 18 76326 256425
Frasso Telesino BN 18 2318 258743
Cusano Mutri BN 18 4091 262834
Casapulla CE 18 8628 271462
Valle di Maddaloni CE 19 2742 274204
Solopaca BN 19 3820 278024
Curti CE 19 7132 285156
Santa Maria Capua Vetere CE 19 32802 317958
Cerreto Sannita BN 19 3940 321898
San Tammaro CE 20 5549 327447
Macerata Campania CE 20 10609 338056

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of Caserta (76326 inhabitants)
31 Km NE of Aversa (53047 inhabitants)
32 Km N of Acerra (59573 inhabitants)
35 Km N of Afragola (65057 inhabitants)
36 Km NE of Giugliano in Campania (122974 inhabitants)
37 Km N of Casoria (77642 inhabitants)
39 Km W of Benevento (60091 inhabitants)
40 Km NE of Marano di Napoli (59874 inhabitants)
45 Km N of Napoli (974074 inhabitants)
46 Km N of Portici (55274 inhabitants)
47 Km N of Ercolano (53709 inhabitants)
48 Km NE of Pozzuoli (81661 inhabitants)
50 Km N of Torre del Greco (86275 inhabitants)
52 Km NW of Avellino (54857 inhabitants)
57 Km N of Scafati (50787 inhabitants)
61 Km N of Castellammare di Stabia (66466 inhabitants)
67 Km NW of Cava de' Tirreni (53659 inhabitants)
71 Km NW of Salerno (135261 inhabitants)
88 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 2.1 2018-04-18
09:25:38
41.2367 14.339 8 2019-04-24
14:49:27
Bollettino Sismico Italiano INGV 55871651
Reviewed
Rev100
ML 2.1 2018-04-18
09:25:38
41.2322 14.3412 8 2018-04-18
09:45:49
Sala Sismica INGV-Roma 55776501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-18 09:25:38 ± 0.06
Latitude 41.2367 ± 0.0045
Longitude 14.3390 ± 0.0048
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55871651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 376
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 31
Type of magnitude ML
Reference to an origin 55871651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-20 13:46:52

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 55776501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-18 09:45:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HHZ. 2018-04-18T09:27:34.91 3.0 undecidable manual Sn -5.28 0
IV.EL6.EHZ. 2018-04-18T09:26:49.16 3.0 undecidable manual Sg 1.35 0
IV.HMDC.HHZ. 2018-04-18T09:26:48.18 3.0 positive manual Pn 2.96 0
IV.SNTG.HHZ. 2018-04-18T09:26:47.42 3.0 undecidable manual Sg 0.04 0
IV.FOSV.EHZ. 2018-04-18T09:26:46.61 3.0 undecidable manual Sn -3.12 0
IV.CESI.HHZ. 2018-04-18T09:26:46.14 3.0 undecidable manual Sg 3.81 0
IV.PF6.EHZ. 2018-04-18T09:26:46.03 3.0 undecidable manual Sg 3.17 0
IV.MML1.EHZ. 2018-04-18T09:26:45.12 3.0 undecidable manual Sg 1.07 0
IV.FDMO.HHZ. 2018-04-18T09:26:44.42 3.0 undecidable manual Sg 2.98 0
IV.T1220.EHZ. 2018-04-18T09:26:41.14 3.0 undecidable manual Sn -1.9 0
OB.GAVE.EHZ. 2018-04-18T09:26:38.23 3.0 undecidable manual Sg 2.21 0
CR.STON.BHZ. 2018-04-18T09:26:34.90 3.0 positive manual Pg 6.97 0
IV.PIEI.HHZ. 2018-04-18T09:26:24.09 3.0 negative manual Pn 1.46 0
IV.CAR1.HHZ. 2018-04-18T09:26:19.69 3.0 undecidable manual Pn -0.57 0
IV.TDS.HHZ. 2018-04-18T09:26:14.62 3.0 negative manual Pn -2.24 0
IV.RCAV.EHZ. 2018-04-18T09:26:14.95 3.0 undecidable manual S -6.14 0
IV.MSAG.HHZ. 2018-04-18T09:26:03.36 3.0 positive manual P -1.06 0
IV.GIUL.HHZ. 2018-04-18T09:25:54.13 3.0 undecidable manual P 0
IV.MODR.HHZ. 2018-04-18T09:25:52.35 0.6 undecidable manual S 255 39.8268 50 0.35 45
IV.SACR.HHN. 2018-04-18T09:25:50.79 1.0 undecidable manual S 60 35.3424 50 -0.03 24
IV.TRIV.HHZ. 2018-04-18T09:25:49.67 0.1 undecidable manual P 17 61.3941 50 0.14 91
IV.PAOL.HHZ. 2018-04-18T09:25:49.23 0.6 undecidable manual S 140 29.748 106 0.21 48
IV.RNI2.HNE. 2018-04-18T09:25:48.87 0.3 undecidable manual P 343 54.0015 50 0.46 65
IV.CERA.HHZ. 2018-04-18T09:25:47.51 0.1 undecidable manual P 326 48.1185 50 0.01 96
IV.VITU.HHZ. 2018-04-18T09:25:47.69 0.6 undecidable manual S 104 25.0527 108 0.24 48
IV.VAGA.HHZ. 2018-04-18T09:25:46.68 0.6 undecidable manual S 336 21.6672 111 0.32 47
IV.MIDA.HHZ. 2018-04-18T09:25:46.84 0.1 positive manual P 351 45.5211 50 -0.25 92
IV.BSSO.HHZ. 2018-04-18T09:25:46.16 0.1 undecidable manual P 32 40.3263 50 -0.14 95
IV.SGG.HHZ. 2018-04-18T09:25:45.21 0.6 undecidable manual S 11 16.9719 116 0.34 47
IV.SACR.HHN. 2018-04-18T09:25:45.68 0.1 undecidable manual P 60 35.3424 50 0.15 96
IV.MODR.HHZ. 2018-04-18T09:25:45.96 0.1 undecidable manual P 255 39.8268 50 -0.25 93
IV.PAOL.HHZ. 2018-04-18T09:25:44.19 0.1 undecidable manual P 140 29.748 106 -0.3 93
IV.PIGN.HNZ. 2018-04-18T09:25:44.03 0.3 undecidable manual S 253 13.875 121 0.1 75
IV.VITU.HHZ. 2018-04-18T09:25:43.66 0.1 positive manual P 104 25.0527 108 0.07 99
IV.PTRJ.HNN. 2018-04-18T09:25:42.82 0.1 undecidable manual P 48 21.2676 111 -0.06 100
IV.VAGA.HHZ. 2018-04-18T09:25:42.50 0.1 negative manual P 336 21.6672 111 -0.46 92
IV.PIGN.HNZ. 2018-04-18T09:25:41.66 0.1 negative manual P 253 13.875 121 0.11 100
IV.SGG.HHZ. 2018-04-18T09:25:41.94 0.1 undecidable manual P 11 16.9719 116 -0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIGN.HHE. ML:2.5 0.0032758180000000002 0.2432 AML other m 2018-04-18T09:25:44.31
IV.PIGN.HNE. ML:2.5 0.0032116784999999997 0.2432 AML other m 2018-04-18T09:25:44.31
IV.PIGN.HHN. ML:2.2 0.0019809095 0.2432 AML other m 2018-04-18T09:25:45.40
IV.PIGN.HNN. ML:2.2 0.0019072915 0.2496 AML other m 2018-04-18T09:25:45.41
IV.SGG.HHE. ML:2.4 0.00225 1.56 AML other m 2018-04-18T09:25:46.84
IV.VAGA.HHE. ML:2.2 0.0012050000000000001 0.52 AML other m 2018-04-18T09:25:48.20
IV.VAGA.HNE. ML:2.2 0.001144 0.52 AML other m 2018-04-18T09:25:48.20
IV.SGG.HHN. ML:2.3 0.0017050000000000001 1.5 AML other m 2018-04-18T09:25:50.82
IV.VITU.HHE. ML:2.4 0.0013599999999999999 1.08 AML other m 2018-04-18T09:25:51.92
IV.VAGA.HNN. ML:2.5 0.0024400000000000003 0.9 AML other m 2018-04-18T09:25:52.55
IV.VAGA.HHN. ML:2.6 0.00252 0.9 AML other m 2018-04-18T09:25:52.55
IV.PAOL.HNN. ML:2.0 0.0005600000000000001 1.16 AML other m 2018-04-18T09:25:53.91
IV.MODR.HHN. ML:2.0 0.0003125 1.76 AML other m 2018-04-18T09:25:53.10
IV.MODR.HHE. ML:1.9 0.000265 0.24 AML other m 2018-04-18T09:25:53.87
IV.VITU.HNE. ML:1.9 0.000447 0.4 AML other m 2018-04-18T09:25:54.60
IV.PAOL.HHN. ML:2.0 0.0005565 1.08 AML other m 2018-04-18T09:25:54.33
IV.VITU.HHN. ML:2.3 0.0013399999999999998 1.68 AML other m 2018-04-18T09:25:55.06
IV.VITU.HNN. ML:2.3 0.001335 0.76 AML other m 2018-04-18T09:25:55.07
IV.PAOL.HHE. ML:2.0 0.0005420000000000001 0.36 AML other m 2018-04-18T09:25:55.26
IV.PAOL.HNE. ML:2.0 0.0004715 0.34 AML other m 2018-04-18T09:25:55.09
IV.BSSO.HNE. ML:1.9 0.00027449999999999995 0.92 AML other m 2018-04-18T09:25:56.13
IV.MIDA.HHN. ML:1.9 0.00021500000000000002 0.38 AML other m 2018-04-18T09:25:56.51
IV.BSSO.HHN. ML:1.6 0.000156 0.78 AML other m 2018-04-18T09:25:57.10
IV.BSSO.HNN. ML:2.0 0.00039249999999999995 0.8 AML other m 2018-04-18T09:25:57.10
IV.MIDA.HHE. ML:2.1 0.00038 1.24 AML other m 2018-04-18T09:26:02.82
IV.MIDA.HNE. ML:2.1 0.0003785 1.26 AML other m 2018-04-18T09:26:02.83
IV.CERA.HNE. ML:2.0 0.000283 0.82 AML other m 2018-04-18T09:26:03.04
IV.CERA.HHE. ML:2.0 0.00027249999999999996 1.38 AML other m 2018-04-18T09:26:04.03
IV.CERA.HHN. ML:2.0 0.000293 0.62 AML other m 2018-04-18T09:26:05.20
IV.CERA.HNN. ML:2.0 0.00028100000000000005 0.6 AML other m 2018-04-18T09:26:05.21
IV.BSSO.HHE. ML:1.5 0.0001175 1.26 AML other m 2018-04-18T09:26:09.12
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