Earthquake with magnitude of ML 1.8 on date 16-09-2021 and time 23:41:33 (Italy) in region 2 km S Monteroduni (IS)

A magnitude ML 1.8 earthquake occured in region: 2 km S Monteroduni (IS), on

  • 16-09-2021 21:41:33 (UTC)
  • 16-09-2021 23:41:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.502, 14.172 at 11 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
Monteroduni IS 3 2264 2264
Capriati a Volturno CE 4 1541 3805
Fontegreca CE 5 811 4616
Ciorlano CE 6 426 5042
Gallo Matese CE 6 579 5621
Sant'Agapito IS 6 1496 7117
Longano IS 7 690 7807
Macchia d'Isernia IS 7 1035 8842
Prata Sannita CE 8 1502 10344
Letino CE 9 712 11056
Montaquila IS 9 2456 13512
Pozzilli IS 9 2380 15892
Castelpizzuto IS 10 155 16047
Pratella CE 11 1565 17612
Venafro IS 11 11280 28892
Filignano IS 11 648 29540
Isernia IS 11 21842 51382
Valle Agricola CE 11 890 52272
Sesto Campano IS 12 2388 54660
Pettoranello del Molise IS 12 460 55120
Fornelli IS 12 1909 57029
Colli a Volturno IS 12 1349 58378
Ailano CE 13 1369 59747
Conca Casale IS 14 200 59947
Roccamandolfi IS 15 938 60885
Rocchetta a Volturno IS 15 1113 61998
Pesche IS 15 1661 63659
Raviscanina CE 16 1319 64978
Presenzano CE 16 1766 66744
Scapoli IS 16 680 67424
Castelpetroso IS 16 1680 69104
Carpinone IS 16 1157 70261
Viticuso FR 17 353 70614
Sant'Angelo d'Alife CE 17 2270 72884
Miranda IS 17 1047 73931
Santa Maria del Molise IS 18 665 74596
Cerro al Volturno IS 18 1281 75877
Mignano Monte Lungo CE 19 3250 79127
Cantalupo nel Sannio IS 19 739 79866
San Pietro Infine CE 19 944 80810
Acquafondata FR 19 263 81073
Vairano Patenora CE 19 6594 87667
Acquaviva d'Isernia IS 19 425 88092
Castel San Vincenzo IS 19 516 88608
Pietravairano CE 20 2984 91592

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km N of Caserta (76326 inhabitants)
59 Km N of Aversa (53047 inhabitants)
64 Km N of Giugliano in Campania (122974 inhabitants)
64 Km N of Acerra (59573 inhabitants)
65 Km N of Afragola (65057 inhabitants)
66 Km NW of Benevento (60091 inhabitants)
67 Km N of Casoria (77642 inhabitants)
67 Km N of Marano di Napoli (59874 inhabitants)
73 Km N of Pozzuoli (81661 inhabitants)
74 Km N of Napoli (974074 inhabitants)
77 Km N of Portici (55274 inhabitants)
78 Km N of Ercolano (53709 inhabitants)
81 Km N of Torre del Greco (86275 inhabitants)
84 Km NW of Avellino (54857 inhabitants)
89 Km NW of Scafati (50787 inhabitants)
93 Km N of Castellammare di Stabia (66466 inhabitants)
95 Km S of Chieti (51815 inhabitants)
100 Km NW of Cava de' Tirreni (53659 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Reviewed
Rev100
ML 1.8 2021-09-16
21:41:33
41.5018 14.1715 11 2021-09-16
21:51:28
Sala Sismica INGV-Roma 95523871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-16 21:41:33 ± 0.07
Latitude 41.5018 ± 0.0036
Longitude 14.1715 ± 0.0072
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95523871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 645
Semi-minor axis of confidence ellipse (meter) 51
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 28
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
Epicentral distance of station farthest from the epicenter (degree) 0.9254
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 95523871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-16 21:51:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ALJA.HHZ. 2021-09-16T21:43:26.61 3.0 undecidable manual Sg 6.97 0
IV.MTGR.HHZ. 2021-09-16T21:43:24.74 3.0 undecidable manual Sg 4.93 0
SI.MOSI.HHZ. 2021-09-16T21:43:10.03 3.0 negative manual Pg 10.47 0
IV.GRI.EHZ. 2021-09-16T21:43:06.62 3.0 undecidable manual Sg 1.65 0
IV.MBAL.EHZ. 2021-09-16T21:42:54.83 3.0 positive manual Pg 7.67 0
IV.MNTV.EHZ. 2021-09-16T21:42:53.60 3.0 negative manual Pg 12.34 0
IV.MILN.HNZ. 2021-09-16T21:42:53.58 3.0 undecidable manual Pn -0.91 0
IV.PLLN.EHZ. 2021-09-16T21:42:31.10 3.0 positive manual Pn 1.59 0
IV.ZCCA.HHZ. 2021-09-16T21:42:29.37 3.0 negative manual Pn -2.16 0
IV.SELL.HHZ. 2021-09-16T21:42:26.87 3.0 undecidable manual Pg 2.66 0
IV.RIBO.EHZ.01 2021-09-16T21:42:22.51 3.0 positive manual Pg 3.9 0
IV.MC2.EHZ. 2021-09-16T21:42:21.34 3.0 undecidable manual S -3.99 0
IV.FAGN.HHZ. 2021-09-16T21:42:01.58 1.0 undecidable manual S 330 0.8795 50 -0.09 21
IX.SRN3.HHZ.02 2021-09-16T21:42:00.23 3.0 negative manual P -0.11 0
IV.T0110.HHZ. 2021-09-16T21:41:58.76 0.6 undecidable manual S 338 0.7842 50 -0.09 44
IV.INTR.HHZ. 2021-09-16T21:41:52.05 0.3 undecidable manual S 339 0.5468 50 0.24 67
IV.LPEL.HHZ. 2021-09-16T21:41:51.78 0.3 undecidable manual S 1 0.545 50 0.04 69
IV.PSB1.HHZ. 2021-09-16T21:41:51.78 1.0 undecidable manual S 120 0.554 50 -0.25 22
IV.VITU.HHZ. 2021-09-16T21:41:50.23 0.6 undecidable manual S 133 0.4685 50 0.73 39
IV.VCEL.EHZ. 2021-09-16T21:41:49.83 0.1 undecidable manual P 345 0.9254 50 -0.53 76
IV.FAGN.HHZ. 2021-09-16T21:41:49.75 0.1 undecidable manual P 330 0.8795 50 0.17 84
IV.T0110.HHZ. 2021-09-16T21:41:47.80 0.1 undecidable manual P 338 0.7842 50 -0.15 86
IV.BSSO.HHZ. 2021-09-16T21:41:45.47 0.6 undecidable manual S 82 0.3193 50 0.41 45
IV.PIGN.HHZ. 2021-09-16T21:41:44.33 0.3 undecidable manual S 179 0.3022 50 -0.22 70
IV.PSB1.HHZ. 2021-09-16T21:41:44.19 0.1 undecidable manual P 120 0.554 50 0.17 90
IV.PAOL.HHZ. 2021-09-16T21:41:43.76 0.1 undecidable manual P 148 0.5567 50 -0.29 88
IV.LPEL.HHZ. 2021-09-16T21:41:43.68 0.1 undecidable manual P 1 0.545 50 -0.17 90
IV.INTR.HHZ. 2021-09-16T21:41:43.68 0.1 undecidable manual P 339 0.5468 50 -0.2 89
IV.VITU.HHZ. 2021-09-16T21:41:42.54 0.1 undecidable manual P 133 0.4685 50 -0.01 94
IV.SGG.HHZ. 2021-09-16T21:41:41.61 0.3 undecidable manual S 126 0.1934 50 0.27 71
IV.RNI2.HHZ. 2021-09-16T21:41:41.84 0.3 undecidable manual S 356 0.2014 50 0.26 71
IV.BSSO.HHZ. 2021-09-16T21:41:40.21 0.1 undecidable manual P 82 0.3193 50 0.22 93
IV.CERA.HHZ. 2021-09-16T21:41:40.42 0.3 undecidable manual S 310 0.1493 123 0.53 67
IV.MIDA.HHZ. 2021-09-16T21:41:39.73 0.3 undecidable manual S 24 0.1529 122 -0.28 71
IV.PIGN.HHZ. 2021-09-16T21:41:39.58 0.1 undecidable manual P 179 0.3022 50 -0.11 96
IV.VAGA.HNZ. 2021-09-16T21:41:38.52 0.3 undecidable manual S 151 0.098 134 0.17 74
IV.RNI2.HHZ. 2021-09-16T21:41:38.02 0.1 undecidable manual P 356 0.2014 50 0.04 99
IV.CERA.HHZ. 2021-09-16T21:41:37.26 0.1 undecidable manual P 310 0.1493 123 0.25 96
IV.SGG.HHZ. 2021-09-16T21:41:37.61 0.1 undecidable manual P 126 0.1934 50 -0.23 95
IV.VAGA.HNZ. 2021-09-16T21:41:36.02 0.1 undecidable manual P 151 0.098 134 -0.09 100
IV.MIDA.HHZ. 2021-09-16T21:41:36.81 0.1 undecidable manual P 24 0.1529 122 -0.26 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VAGA.HNE. ML:2.3 0.002505 1.3 AML other m 2021-09-16T21:41:38.94
IV.VAGA.HHN. ML:2.7 0.00565 0.34 AML other m 2021-09-16T21:41:39.58
IV.VAGA.HNN. ML:2.6 0.00537 0.32 AML other m 2021-09-16T21:41:39.59
IV.VAGA.HHE. ML:2.1 0.00152 0.22 AML other m 2021-09-16T21:41:40.55
IV.MIDA.HHE. ML:1.8 0.000593 0.42 AML other m 2021-09-16T21:41:41.15
IV.MIDA.HHN. ML:1.9 0.000661 0.2 AML other m 2021-09-16T21:41:43.07
IV.SGG.HHE. ML:2.1 0.0008245 0.42 AML other m 2021-09-16T21:41:43.14
IV.RNI2.HHE. ML:1.5 0.0001905 0.68 AML other m 2021-09-16T21:41:44.10
IV.SGG.HHN. ML:2.1 0.000903 0.38 AML other m 2021-09-16T21:41:44.49
IV.CERA.HNE. ML:1.8 0.000569 0.42 AML other m 2021-09-16T21:41:44.67
IV.RNI2.HHN. ML:1.7 0.0003045 0.9 AML other m 2021-09-16T21:41:45.46
IV.CERA.HHN. ML:1.8 0.000619 1.02 AML other m 2021-09-16T21:41:45.13
IV.CERA.HNN. ML:1.8 0.00059 1.02 AML other m 2021-09-16T21:41:45.13
IV.PIGN.HHN. ML:1.6 0.000148 0.68 AML other m 2021-09-16T21:41:45.03
IV.CERA.HHE. ML:1.7 0.000435 0.5 AML other m 2021-09-16T21:41:45.66
IV.PIGN.HHE. ML:1.8 0.0002695 0.2 AML other m 2021-09-16T21:41:47.69
IV.BSSO.HHN. ML:1.7 0.0002155 0.8 AML other m 2021-09-16T21:41:51.93
IV.BSSO.HNN. ML:1.7 0.000213 0.8 AML other m 2021-09-16T21:41:51.93
IV.BSSO.HHE. ML:1.7 0.0002155 0.72 AML other m 2021-09-16T21:41:53.10
IV.BSSO.HNE. ML:1.7 0.0002065 0.7 AML other m 2021-09-16T21:41:53.46
IV.INTR.HHE. ML:1.7 0.00010035 0.42 AML other m 2021-09-16T21:41:56.03
IV.VITU.HHN. ML:2.1 0.000295 0.28 AML other m 2021-09-16T21:41:56.32
IV.LPEL.HHN. ML:1.4 5.375E-5 0.18 AML other m 2021-09-16T21:41:56.54
IV.PAOL.HHE. ML:1.6 8.7E-5 1.42 AML other m 2021-09-16T21:41:56.80
IV.VITU.HHE. ML:2 0.000246 0.4 AML other m 2021-09-16T21:41:57.16
IV.INTR.HHN. ML:1.7 9.995E-5 0.26 AML other m 2021-09-16T21:41:57.47
IV.PAOL.HHN. ML:1.6 8.095E-5 1.72 AML other m 2021-09-16T21:41:57.04
IV.LPEL.HHE. ML:1.4 5.715E-5 0.7 AML other m 2021-09-16T21:41:59.11
IV.PSB1.HHN. ML:1.5 6.745E-5 0.68 AML other m 2021-09-16T21:42:00.51
IV.PSB1.HHE. ML:1.6 7.64E-5 0.44 AML other m 2021-09-16T21:42:00.45
IX.SRN3.HHN.02 ML:2.2 6.905E-5 0.44 AML other m 2021-09-16T21:42:01.10
IV.T0110.HHE. ML:1.8 7.925E-5 0.56 AML other m 2021-09-16T21:42:04.64
IV.FAGN.HHE. ML:2 0.0001135 0.52 AML other m 2021-09-16T21:42:06.01
IV.T0110.HHN. ML:1.8 6.855E-5 0.98 AML other m 2021-09-16T21:42:07.06
IV.FAGN.HHN. ML:1.9 7.545E-5 0.5 AML other m 2021-09-16T21:42:16.59
IX.SRN3.HHE.02 ML:2.3 9.7E-5 0.1 AML other m 2021-09-16T21:42:24.30
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