Earthquake with magnitude of ML 1.7 on date 19-09-2021 and time 12:06:40 (Italy) in region 3 km SE Monteroduni (IS)

A magnitude ML 1.7 earthquake occured in region: 3 km SE Monteroduni (IS), on

  • 19-09-2021 10:06:40 (UTC)
  • 19-09-2021 12:06:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.509, 14.201 at 9 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
Longano IS 4 690 2954
Sant'Agapito IS 4 1496 4450
Gallo Matese CE 5 579 5029
Fontegreca CE 6 811 5840
Capriati a Volturno CE 6 1541 7381
Macchia d'Isernia IS 7 1035 8416
Ciorlano CE 7 426 8842
Letino CE 8 712 9554
Castelpizzuto IS 8 155 9709
Prata Sannita CE 8 1502 11211
Isernia IS 9 21842 33053
Montaquila IS 10 2456 35509
Pettoranello del Molise IS 10 460 35969
Valle Agricola CE 10 890 36859
Pozzilli IS 12 2380 39239
Pratella CE 12 1565 40804
Fornelli IS 12 1909 42713
Filignano IS 13 648 43361
Roccamandolfi IS 13 938 44299
Colli a Volturno IS 13 1349 45648
Venafro IS 13 11280 56928
Ailano CE 13 1369 58297
Pesche IS 13 1661 59958
Castelpetroso IS 13 1680 61638
Carpinone IS 14 1157 62795
Sesto Campano IS 14 2388 65183
Santa Maria del Molise IS 15 665 65848
Miranda IS 16 1047 66895
Raviscanina CE 16 1319 68214
Rocchetta a Volturno IS 16 1113 69327
Cantalupo nel Sannio IS 16 739 70066
Conca Casale IS 16 200 70266
Scapoli IS 17 680 70946
Sant'Angelo d'Alife CE 17 2270 73216
San Massimo CB 18 855 74071
Presenzano CE 18 1766 75837
Macchiagodena IS 18 1854 77691
Cerro al Volturno IS 18 1281 78972
Sessano del Molise IS 18 727 79699
Acquaviva d'Isernia IS 19 425 80124
Viticuso FR 19 353 80477
San Gregorio Matese CE 20 988 81465
Castel San Vincenzo IS 20 516 81981

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km N of Caserta (76326 inhabitants)
60 Km N of Aversa (53047 inhabitants)
64 Km N of Acerra (59573 inhabitants)
64 Km NW of Benevento (60091 inhabitants)
65 Km N of Giugliano in Campania (122974 inhabitants)
66 Km N of Afragola (65057 inhabitants)
67 Km N of Casoria (77642 inhabitants)
68 Km N of Marano di Napoli (59874 inhabitants)
74 Km N of Pozzuoli (81661 inhabitants)
75 Km N of Napoli (974074 inhabitants)
77 Km N of Portici (55274 inhabitants)
79 Km N of Ercolano (53709 inhabitants)
81 Km N of Torre del Greco (86275 inhabitants)
83 Km NW of Avellino (54857 inhabitants)
89 Km NW of Scafati (50787 inhabitants)
94 Km N of Castellammare di Stabia (66466 inhabitants)
94 Km S of Chieti (51815 inhabitants)
99 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.7 2021-09-19
10:06:40
41.5092 14.2008 9 2021-09-19
10:16:43
Sala Sismica INGV-Roma 95629261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 10:06:40 ± 0.1
Latitude 41.5092 ± 0.0063
Longitude 14.2008 ± 0.0096
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95629261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 923
Semi-minor axis of confidence ellipse (meter) 74
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 920
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 95629261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 10:16:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IX.COL3.HHZ.02 2021-09-19T10:07:05.75 0.6 positive manual P 2.56 0
IV.INTR.HHZ. 2021-09-19T10:07:00.26 0.3 undecidable manual S 336 0.5486 50 0.28 66
IV.POFI.HHZ. 2021-09-19T10:06:56.49 0.6 undecidable manual S 300 0.42 50 0.3 45
IV.VITU.HHZ. 2021-09-19T10:06:56.92 0.3 undecidable manual S 135 0.4578 50 -0.38 66
IV.BSSO.HHZ. 2021-09-19T10:06:53.12 0.3 undecidable manual S 83 0.2968 50 0.61 63
IV.INTR.HHZ. 2021-09-19T10:06:51.18 0.1 undecidable manual P 336 0.5486 50 -0.73 77
IV.VITU.HHZ. 2021-09-19T10:06:50.55 0.1 undecidable manual P 135 0.4578 50 0.19 91
IV.POFI.HHZ. 2021-09-19T10:06:49.77 0.1 undecidable manual P 300 0.42 50 0.05 95
IV.SGG.HHZ. 2021-09-19T10:06:49.17 0.3 undecidable manual S 132 0.1808 115 0.61 65
IV.CERA.HHZ. 2021-09-19T10:06:48.48 0.3 undecidable manual S 303 0.1628 117 0.55 66
IV.RNI2.HHZ. 2021-09-19T10:06:48.98 0.3 undecidable manual S 349 0.197 113 -0.16 73
IV.MIDA.HHZ. 2021-09-19T10:06:47.29 0.3 undecidable manual S 17 0.1385 121 0.18 73
IV.BSSO.HHZ. 2021-09-19T10:06:47.58 0.1 undecidable manual P 83 0.2968 50 -0.02 98
IV.VAGA.HHZ. 2021-09-19T10:06:46.04 0.3 undecidable manual S 165 0.0971 131 0.23 73
IV.RNI2.HHZ. 2021-09-19T10:06:45.63 0.1 undecidable manual P 349 0.197 113 -0.02 100
IV.SGG.HHZ. 2021-09-19T10:06:44.91 0.1 undecidable manual P 132 0.1808 115 -0.41 92
IV.CERA.HHZ. 2021-09-19T10:06:44.92 0.1 undecidable manual P 303 0.1628 117 -0.03 100
IV.MIDA.HHZ. 2021-09-19T10:06:44.15 0.1 undecidable manual P 17 0.1385 121 -0.33 94
IV.VAGA.HHZ. 2021-09-19T10:06:43.41 0.1 positive manual P 165 0.0971 131 -0.32 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VAGA.HHN. ML:2.4 0.003075 0.3 AML other m 2021-09-19T10:06:46.71
IV.VAGA.HNN. ML:2.4 0.002915 0.3 AML other m 2021-09-19T10:06:46.71
IV.VAGA.HNE. ML:1.9 0.001075 0.46 AML other m 2021-09-19T10:06:47.65
IV.VAGA.HHE. ML:1.9 0.0009535 0.18 AML other m 2021-09-19T10:06:47.79
IV.MIDA.HHN. ML:1.7 0.000471 0.2 AML other m 2021-09-19T10:06:50.53
IV.SGG.HHE. ML:1.8 0.000544 0.66 AML other m 2021-09-19T10:06:51.20
IV.SGG.HNN. ML:1.9 0.000575 1.64 AML other m 2021-09-19T10:06:51.04
IV.SGG.HHN. ML:1.9 0.000605 1.66 AML other m 2021-09-19T10:06:51.87
IV.MIDA.HHE. ML:1.6 0.0003975 1.6 AML other m 2021-09-19T10:06:52.81
IV.RNI2.HHN. ML:1.5 0.0002315 0.88 AML other m 2021-09-19T10:06:52.83
IV.SGG.HNE. ML:1.9 0.0005545 0.76 AML other m 2021-09-19T10:06:53.40
IV.CERA.HHE. ML:1.6 0.000321 0.3 AML other m 2021-09-19T10:06:53.02
IV.CERA.HHN. ML:1.6 0.0003645 0.38 AML other m 2021-09-19T10:06:53.21
IV.RNI2.HHE. ML:1.4 0.0001815 0.7 AML other m 2021-09-19T10:06:56.61
IV.BSSO.HHN. ML:1.5 0.0001289 1.22 AML other m 2021-09-19T10:06:59.28
IV.BSSO.HHE. ML:1.6 0.0001545 0.74 AML other m 2021-09-19T10:07:00.83
IV.VITU.HHN. ML:1.9 0.0001905 0.3 AML other m 2021-09-19T10:07:03.67
IV.VITU.HHE. ML:1.7 0.000135 0.36 AML other m 2021-09-19T10:07:04.52
IV.INTR.HHN. ML:1.6 7.615E-5 1.26 AML other m 2021-09-19T10:07:06.83
IV.INTR.HHE. ML:1.6 7.305E-5 0.64 AML other m 2021-09-19T10:07:09.46
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