Earthquake with magnitude of ML 1.6 on date 21-03-2020 and time 16:11:31 (Italy) in region 1 km NW San Leucio del Sannio (BN)

A magnitude ML 1.6 earthquake occured in region: 1 km NW San Leucio del Sannio (BN), on

  • 21-03-2020 15:11:31 (UTC)
  • 21-03-2020 16:11:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.08, 14.75 at 17 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.

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 Leucio del Sannio BN 1 3106 3106
Ceppaloni BN 4 3415 6521
Sant'Angelo a Cupolo BN 4 4325 10846
Apollosa BN 5 2658 13504
Chianche AV 5 475 13979
Arpaise BN 5 761 14740
San Nicola Manfredi BN 6 3722 18462
Petruro Irpino AV 6 349 18811
Benevento BN 6 60091 78902
Torrioni AV 7 549 79451
San Martino Sannita BN 7 1230 80681
Roccabascerana AV 7 2354 83035
Altavilla Irpina AV 8 4196 87231
Pannarano BN 8 2130 89361
Castelpoto BN 9 1254 90615
San Giorgio del Sannio BN 9 10022 100637
San Nazzaro BN 9 884 101521
San Martino Valle Caudina AV 9 4884 106405
Calvi BN 10 2682 109087
Tufo AV 10 889 109976
Montesarchio BN 10 13500 123476
Pietrastornina AV 10 1553 125029
Montefusco AV 10 1338 126367
Santa Paolina AV 10 1256 127623
Campoli del Monte Taburno BN 11 1546 129169
Sant'Angelo a Scala AV 11 730 129899
Foglianise BN 11 3385 133284
Bonea BN 11 1448 134732
Tocco Caudio BN 12 1508 136240
Grottolella AV 12 1869 138109
Pietradefusi AV 12 2348 140457
Prata di Principato Ultra AV 12 2944 143401
Cautano BN 13 2044 145445
Cervinara AV 13 9658 155103
Pratola Serra AV 13 3764 158867
Capriglia Irpina AV 14 2398 161265
Torrecuso BN 14 3407 164672
Vitulano BN 14 2944 167616
Montefredane AV 14 2297 169913
Rotondi AV 14 3591 173504
Summonte AV 14 1583 175087
Venticano AV 14 2537 177624
Torre Le Nocelle AV 15 1324 178948
Montemiletto AV 15 5313 184261
Paduli BN 15 3978 188239
Paolisi BN 15 2072 190311
Paupisi BN 15 1633 191944
Ospedaletto d'Alpinolo AV 15 2145 194089
Bucciano BN 15 2100 196189
Pietrelcina BN 16 3114 199303
Apice BN 16 5686 204989
Airola BN 16 8195 213184
Ponte BN 16 2580 215764
Montefalcione AV 17 3359 219123
Manocalzati AV 17 3160 222283
Quadrelle AV 17 1865 224148
Moiano BN 17 4094 228242
Arpaia BN 18 1992 230234
Mercogliano AV 18 12267 242501
Sirignano AV 18 2933 245434
Mugnano del Cardinale AV 18 5373 250807
Baiano AV 18 4718 255525
Candida AV 18 1147 256672
Pesco Sannita BN 18 1972 258644
Avella AV 18 7890 266534
Avellino AV 18 54857 321391
Sant'Arcangelo Trimonte BN 19 573 321964
Sperone AV 19 3706 325670
Taurasi AV 19 2377 328047
Fragneto Monforte BN 19 1840 329887
Forchia BN 19 1235 331122
Atripalda AV 19 11020 342142
San Potito Ultra AV 19 1558 343700
Lapio AV 19 1572 345272
Parolise AV 20 663 345935
Roccarainola NA 20 7082 353017
Fragneto l'Abate BN 20 1049 354066

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SW of Benevento (60091 inhabitants)
18 Km N of Avellino (54857 inhabitants)
35 Km E of Acerra (59573 inhabitants)
35 Km E of Caserta (76326 inhabitants)
41 Km E of Afragola (65057 inhabitants)
41 Km NE of Scafati (50787 inhabitants)
42 Km N of Cava de' Tirreni (53659 inhabitants)
43 Km E of Casoria (77642 inhabitants)
44 Km NE of Portici (55274 inhabitants)
44 Km N of Salerno (135261 inhabitants)
45 Km NE of Ercolano (53709 inhabitants)
46 Km NE of Torre del Greco (86275 inhabitants)
47 Km E of Aversa (53047 inhabitants)
48 Km NE of Castellammare di Stabia (66466 inhabitants)
49 Km E of Giugliano in Campania (122974 inhabitants)
50 Km NE of Napoli (974074 inhabitants)
51 Km E of Marano di Napoli (59874 inhabitants)
56 Km NW of Battipaglia (50786 inhabitants)
61 Km E of Pozzuoli (81661 inhabitants)
79 Km SW of Foggia (151991 inhabitants)
86 Km SW of San Severo (53905 inhabitants)
99 Km W of Cerignola (58396 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.6 2020-03-21
15:11:31
41.08 14.75 17 2020-03-21
15:32:14
Sala Sismica INGV-Roma 77438241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-21 15:11:31 ± 0.2
Latitude 41.08 ± 0.01
Longitude 14.75 ± 0.01
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77438241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1312
Semi-minor axis of confidence ellipse (meter) 719
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 1310
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.52071
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 77438241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-21 15:32:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IOCA.HHZ. 2020-03-21T15:11:58.75 3.0 undecidable manual S 0.79 0
IX.CLT3.HHZ.02 2020-03-21T15:11:41.44 0.3 undecidable manual P 109 0.5207 98 -0.89 54
IV.MRB1.HHZ. 2020-03-21T15:11:40.39 0.3 undecidable manual S 74 0.1673 123 0.47 69
IV.VBKN.HHN. 2020-03-21T15:11:39.81 0.1 undecidable manual P 225 0.348 103 0.38 92
IV.PSB1.HHZ. 2020-03-21T15:11:39.46 0.6 undecidable manual S 16 0.152 127 -0.08 51
IV.SACR.HHE. 2020-03-21T15:11:39.71 0.3 undecidable manual P 353 0.322 104 0.72 60
IV.PAOL.HHZ. 2020-03-21T15:11:39.53 0.6 undecidable manual S 252 0.1484 127 0.08 51
IV.PTRJ.HHZ. 2020-03-21T15:11:39.31 0.6 undecidable manual P 329 0.3327 104 0.14 48
IV.VITU.HHZ. 2020-03-21T15:11:38.34 0.3 undecidable manual S 319 0.1412 129 -0.95 58
IX.MNT3.HHZ.02 2020-03-21T15:11:38.36 0.1 undecidable manual P 142 0.3067 105 -0.38 91
IT.AVL.HNE. 2020-03-21T15:11:37.09 0.6 undecidable manual P 171 0.1565 125 0.69 44
IV.MTMR.EHZ. 2020-03-21T15:11:37.44 0.6 positive manual P 130 0.2455 111 -0.31 47
IX.BENI.HNE.01 2020-03-21T15:11:37.37 0.3 undecidable manual S 14 0.054 157 -0.35 73
IX.LGS3.HNN.01 2020-03-21T15:11:37.04 0.3 undecidable manual P 117 0.1996 117 0.01 76
IV.PAOL.HHZ. 2020-03-21T15:11:36.70 0.3 positive manual P 252 0.1484 127 0.42 71
IV.MRB1.HHZ. 2020-03-21T15:11:36.91 0.6 undecidable manual P 74 0.1673 123 0.36 47
IV.PSB1.HHZ. 2020-03-21T15:11:36.72 0.6 undecidable manual P 16 0.152 127 0.39 47
IV.VITU.HHZ. 2020-03-21T15:11:36.06 0.1 negative manual P 319 0.1412 129 -0.13 100
IX.BENI.HNE.01 2020-03-21T15:11:35.02 0.3 undecidable manual P 14 0.054 157 -0.26 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IX.MNT3.HHN.02 ML:1.9 0.0003175 0.1 AML other m 2020-03-21T15:11:44.63
IV.PAOL.HHN. ML:1.5 0.000222 0.78 AML other m 2020-03-21T15:11:41.83
IV.VITU.HHN. ML:0 0.00028 1.12 AML other m 2020-03-21T15:11:41.92
IX.MNT3.HHE.02 ML:1.8 0.0002455 0.78 AML other m 2020-03-21T15:11:43.48
IV.MRB1.HHE. ML:1.6 0.0002465 0.46 AML other m 2020-03-21T15:11:44.30
IV.VITU.HHE. ML:0 0.000296 0.42 AML other m 2020-03-21T15:11:45.43
IV.PSB1.HHN. ML:1 6.145E-5 0.42 AML other m 2020-03-21T15:11:45.88
IV.PSB1.HHE. ML:1 6.635E-5 0.78 AML other m 2020-03-21T15:11:45.51
IV.MRB1.HHN. ML:1.6 0.00023 0.36 AML other m 2020-03-21T15:11:46.09
IV.VITU.HNN. ML:1.8 0.00050935565 0.4992 AML other m 2020-03-21T15:11:43.66
IV.PAOL.HNE. ML:1.4 0.0001780564 0.2944 AML other m 2020-03-21T15:11:41.58
IV.MRB1.HNE. ML:1.6 0.0002407436 0.4864 AML other m 2020-03-21T15:11:44.31
IV.MRB1.HNN. ML:1.7 0.0002975819 0.6144 AML other m 2020-03-21T15:11:46.52
IV.MTMR.EHN. ML:1.5 0.00014225655 0.1408 AML other m 2020-03-21T15:11:42.69
IV.MTMR.EHE. ML:1.4 0.000125748235 0.1024 AML other m 2020-03-21T15:11:42.61
IV.MTMR.HNE. ML:1.6 0.0001808884 0.1024 AML other m 2020-03-21T15:11:42.62
IX.CLT3.HHE.02 ML:1.7 9.974597E-5 0.0768 AML other m 2020-03-21T15:11:43.47
IX.CLT3.HHN.02 ML:1.6 8.7193645E-5 0.1408 AML other m 2020-03-21T15:11:42.43
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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