Earthquake with magnitude of ML 1.4 on date 19-10-2021 and time 03:13:21 (Italy) in region 2 km W Vastogirardi (IS)

A magnitude ML 1.4 earthquake occured in region: 2 km W Vastogirardi (IS), on

  • 19-10-2021 01:13:21 (UTC)
  • 19-10-2021 03:13:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.774, 14.232 at 18 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
Vastogirardi IS 2 704 704
San Pietro Avellana IS 4 503 1207
Capracotta IS 7 903 2110
Roccasicura IS 8 550 2660
Carovilli IS 9 1359 4019
Castel del Giudice IS 9 346 4365
Ateleta AQ 10 1181 5546
Forlì del Sannio IS 10 675 6221
Rionero Sannitico IS 10 1118 7339
Castel di Sangro AQ 10 6538 13877
Agnone IS 12 5139 19016
Sant'Angelo del Pesco IS 12 364 19380
Pescopennataro IS 13 285 19665
Acquaviva d'Isernia IS 13 425 20090
Pietrabbondante IS 13 759 20849
Pescolanciano IS 14 855 21704
Castelverrino IS 14 115 21819
Miranda IS 14 1047 22866
Gamberale CH 15 320 23186
Roccaraso AQ 15 1627 24813
Poggio Sannita IS 15 702 25515
Montenero Val Cocchiara IS 15 538 26053
Scontrone AQ 16 574 26627
Pizzoferrato CH 17 1130 27757
Chiauci IS 17 233 27990
Belmonte del Sannio IS 17 768 28758
Alfedena AQ 17 864 29622
Cerro al Volturno IS 17 1281 30903
Sessano del Molise IS 17 727 31630
Rosello CH 17 237 31867
Rivisondoli AQ 17 700 32567
Borrello CH 17 354 32921
Quadri CH 18 815 33736
Pesche IS 19 1661 35397
Civitanova del Sannio IS 19 945 36342
Pescocostanzo AQ 19 1128 37470
Castel San Vincenzo IS 19 516 37986
Roio del Sangro CH 19 103 38089
Fallo CH 20 139 38228
Fornelli IS 20 1909 40137
Civitaluparella CH 20 351 40488

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km S of Chieti (51815 inhabitants)
77 Km S of Pescara (121014 inhabitants)
78 Km N of Caserta (76326 inhabitants)
83 Km S of Montesilvano (53738 inhabitants)
85 Km NW of Benevento (60091 inhabitants)
89 Km N of Aversa (53047 inhabitants)
93 Km N of Acerra (59573 inhabitants)
94 Km N of Giugliano in Campania (122974 inhabitants)
94 Km SE of L'Aquila (69753 inhabitants)
95 Km N of Afragola (65057 inhabitants)
96 Km W of San Severo (53905 inhabitants)
97 Km N of Casoria (77642 inhabitants)
97 Km N of Marano di Napoli (59874 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 1.4 2021-10-19
01:13:21
41.7742 14.2323 18 2021-10-19
01:18:06
Sala Sismica INGV-Roma 96744651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-19 01:13:21 ± 0.11
Latitude 41.7742 ± 0.0036
Longitude 14.2323 ± 0.0048
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96744651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.09263
Epicentral distance of station farthest from the epicenter (degree) 0.49822
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 96744651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-19 01:18:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LRP.EHZ. 2021-10-19T01:13:38.87 0.6 undecidable manual S 255 0.4982 99 0.46 43
IV.VVLD.HHZ. 2021-10-19T01:13:37.27 0.3 undecidable manual S 282 0.4632 100 -0.12 69
IV.POFI.HHZ. 2021-10-19T01:13:35.41 0.1 undecidable manual S 262 0.3921 102 0.1 94
IV.INTR.HHZ. 2021-10-19T01:13:33.96 0.3 undecidable manual S 314 0.3399 105 0.14 70
IV.LPEL.HHZ. 2021-10-19T01:13:31.29 0.6 undecidable manual S 352 0.2752 109 -0.68 42
IV.CERA.HHZ. 2021-10-19T01:13:31.01 0.6 undecidable manual S 222 0.2383 113 0.06 49
IV.LRP.EHZ. 2021-10-19T01:13:30.95 1.0 undecidable manual P 255 0.4982 99 -0.12 23
IV.TST02.HHZ. 2021-10-19T01:13:30.66 0.6 undecidable manual S 28 0.2221 115 0.15 48
IV.VVLD.HHZ. 2021-10-19T01:13:30.28 0.1 undecidable manual P 282 0.4632 100 -0.21 90
IV.POFI.HHZ. 2021-10-19T01:13:29.19 0.1 undecidable manual P 262 0.3921 102 -0.1 94
IV.INTR.HHZ. 2021-10-19T01:13:28.37 0.1 undecidable manual P 314 0.3399 105 -0.05 96
IV.VAGA.HHZ. 2021-10-19T01:13:28.81 0.3 negative manual P 180 0.3588 104 0.08 72
IV.TST01.HHZ. 2021-10-19T01:13:28.17 0.6 undecidable manual S 102 0.1178 137 0.17 49
IV.RNI2.HHZ. 2021-10-19T01:13:27.64 0.6 undecidable manual S 220 0.0926 144 0.11 49
IV.MIDA.HHZ. 2021-10-19T01:13:27.92 0.6 undecidable manual S 173 0.1331 133 -0.41 46
IV.LPEL.HHZ. 2021-10-19T01:13:27.37 0.1 undecidable manual P 352 0.2752 109 0.02 98
IV.TST02.HHZ. 2021-10-19T01:13:26.50 1.0 undecidable manual P 28 0.2221 115 -0.01 25
IV.CERA.HHZ. 2021-10-19T01:13:26.65 1.0 undecidable manual P 222 0.2383 113 -0.11 24
IV.MIDA.HHZ. 2021-10-19T01:13:25.23 0.1 positive manual P 173 0.1331 133 -0.02 100
IV.TST01.HHZ. 2021-10-19T01:13:25.27 0.6 negative manual P 102 0.1178 137 0.2 49
IV.RNI2.HHZ. 2021-10-19T01:13:24.94 0.1 undecidable manual P 220 0.0926 144 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHE. ML:1.2 0.000142 1.6 AML other m 2021-10-19T01:13:27.84
IV.RNI2.HHN. ML:1.7 0.000378 0.28 AML other m 2021-10-19T01:13:28.26
IV.MIDA.HHN. ML:1.8 0.000507 0.42 AML other m 2021-10-19T01:13:28.62
IV.TST01.HHN. ML:1.1 9.35E-5 0.64 AML other m 2021-10-19T01:13:28.53
IV.MIDA.HHE. ML:1.6 0.0002915 1.66 AML other m 2021-10-19T01:13:29.14
IV.TST01.HHE. ML:1 6.75E-5 0.4 AML other m 2021-10-19T01:13:30.58
IV.TST02.HHN. ML:1.4 0.000137 1.6 AML other m 2021-10-19T01:13:31.05
IV.TST02.HHE. ML:1.6 0.000206 0.46 AML other m 2021-10-19T01:13:31.99
IV.LPEL.HHN. ML:1.4 0.0001085 0.12 AML other m 2021-10-19T01:13:33.48
IV.LPEL.HHE. ML:1.6 0.000153 0.1 AML other m 2021-10-19T01:13:33.72
IV.INTR.HHE. ML:1.2 5.99E-5 0.48 AML other m 2021-10-19T01:13:34.73
IV.INTR.HHN. ML:1.2 5.86E-5 0.5 AML other m 2021-10-19T01:13:35.50
IV.VVLD.HHE. ML:1.3 4.78E-5 0.32 AML other m 2021-10-19T01:13:37.47
IV.VVLD.HHN. ML:1.3 4.815E-5 0.18 AML other m 2021-10-19T01:13:37.73
IV.VAGA.HHN. ML:1.3 6.245E-5 0.42 AML other m 2021-10-19T01:13:38.71
IV.VAGA.HHE. ML:0.9 2.31E-5 0.74 AML other m 2021-10-19T01:13:41.58
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