Earthquake with magnitude of ML 0.8 on date 29-09-2020 and time 20:53:51 (Italy) in region 3 km W Vastogirardi (IS)

A magnitude ML 0.8 earthquake occured in region: 3 km W Vastogirardi (IS), on

  • 29-09-2020 18:53:51 (UTC)
  • 29-09-2020 20:53:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.77, 14.22 at 15 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 3 704 704
San Pietro Avellana IS 4 503 1207
Roccasicura IS 7 550 1757
Carovilli IS 8 1359 3116
Capracotta IS 8 903 4019
Forlì del Sannio IS 9 675 4694
Rionero Sannitico IS 9 1118 5812
Castel di Sangro AQ 10 6538 12350
Castel del Giudice IS 10 346 12696
Ateleta AQ 10 1181 13877
Acquaviva d'Isernia IS 12 425 14302
Agnone IS 13 5139 19441
Sant'Angelo del Pesco IS 13 364 19805
Pescolanciano IS 13 855 20660
Miranda IS 14 1047 21707
Pietrabbondante IS 14 759 22466
Pescopennataro IS 14 285 22751
Montenero Val Cocchiara IS 14 538 23289
Castelverrino IS 15 115 23404
Roccaraso AQ 15 1627 25031
Scontrone AQ 15 574 25605
Gamberale CH 16 320 25925
Poggio Sannita IS 16 702 26627
Cerro al Volturno IS 16 1281 27908
Alfedena AQ 16 864 28772
Chiauci IS 17 233 29005
Sessano del Molise IS 17 727 29732
Pizzoferrato CH 18 1130 30862
Rivisondoli AQ 18 700 31562
Pesche IS 18 1661 33223
Belmonte del Sannio IS 18 768 33991
Castel San Vincenzo IS 18 516 34507
Rosello CH 18 237 34744
Civitanova del Sannio IS 19 945 35689
Borrello CH 19 354 36043
Quadri CH 19 815 36858
Fornelli IS 19 1909 38767
Pizzone IS 19 329 39096
Pescocostanzo AQ 19 1128 40224
Barrea AQ 19 726 40950
Rocchetta a Volturno IS 19 1113 42063
Isernia IS 20 21842 63905

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km S of Chieti (51815 inhabitants)
77 Km N of Caserta (76326 inhabitants)
78 Km S of Pescara (121014 inhabitants)
84 Km S of Montesilvano (53738 inhabitants)
85 Km NW of Benevento (60091 inhabitants)
88 Km N of Aversa (53047 inhabitants)
92 Km N of Acerra (59573 inhabitants)
93 Km N of Giugliano in Campania (122974 inhabitants)
94 Km N of Afragola (65057 inhabitants)
94 Km SE of L'Aquila (69753 inhabitants)
96 Km N of Casoria (77642 inhabitants)
96 Km N of Marano di Napoli (59874 inhabitants)
97 Km W of San Severo (53905 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
Reviewed
Rev100
ML 0.8 2020-09-29
18:53:51
41.77 14.22 15 2020-09-29
19:18:00
Sala Sismica INGV-Roma 83372631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-29 18:53:51 ± 0.12
Latitude 41.77 ± 0.00
Longitude 14.22 ± 0.01
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83372631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 423
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) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 83372631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-29 19:18:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.POFI.HNZ. 2020-09-29T18:54:05.72 0.6 undecidable manual S 263 0.3849 97 -0.06 49
IV.INTR.HHZ. 2020-09-29T18:54:04.72 0.3 undecidable manual S 316 0.3417 99 0.2 71
IV.LPEL.HNN. 2020-09-29T18:54:02.62 0.3 undecidable manual S 354 0.2824 102 -0.17 71
IV.CERA.HNZ. 2020-09-29T18:54:01.67 0.3 undecidable manual S 223 0.2275 106 0.46 68
IV.POFI.HNZ. 2020-09-29T18:53:59.65 0.1 undecidable manual P 263 0.3849 97 -0.25 93
IV.INTR.HHZ. 2020-09-29T18:53:59.17 0.3 undecidable manual P 316 0.3417 99 0.01 74
IV.MIDA.HHZ. 2020-09-29T18:53:58.34 0.1 undecidable manual S 170 0.1259 127 -0.14 100
IV.LPEL.HNN. 2020-09-29T18:53:58.25 0.3 undecidable manual P 354 0.2824 102 0.09 74
IV.RNI2.HHZ. 2020-09-29T18:53:57.47 0.3 undecidable manual S 221 0.0827 142 -0.09 77
IV.TRIV.HHZ. 2020-09-29T18:53:57.67 0.1 undecidable manual P 90 0.2428 105 0.16 98
IV.CERA.HNZ. 2020-09-29T18:53:56.83 0.3 undecidable manual P 223 0.2275 106 -0.43 69
IV.RNI2.HHZ. 2020-09-29T18:53:55.25 0.3 undecidable manual P 221 0.0827 142 0.1 76
IV.MIDA.HHZ. 2020-09-29T18:53:55.83 0.1 undecidable manual P 170 0.1259 127 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RNI2.HHE. ML:0.7 4.9614385E-5 0.1152 AML other m 2020-09-29T18:53:57.79
IV.RNI2.HHN. ML:0.7 4.2805265E-5 0.1536 AML other m 2020-09-29T18:53:58.26
IV.RNI2.HNE. ML:0.7 4.4508005E-5 0.1152 AML other m 2020-09-29T18:53:57.79
IV.RNI2.HNN. ML:0.3 1.822271E-5 0.1408 AML other m 2020-09-29T18:53:57.81
IV.MIDA.HHE. ML:0.7 4.3781045E-5 0.0896 AML other m 2020-09-29T18:53:58.90
IV.MIDA.HHN. ML:0.8 5.5387655E-5 0.4352 AML other m 2020-09-29T18:53:59.10
IV.MIDA.HNE. ML:0.7 3.9096505E-5 0.4736 AML other m 2020-09-29T18:53:58.89
IV.MIDA.HNN. ML:1.2 0.000141077295 0.448 AML other m 2020-09-29T18:53:59.81
IV.INTR.HHE. ML:0.8 1.850319E-5 0.2176 AML other m 2020-09-29T18:54:06.34
IV.INTR.HHN. ML:0.8 1.8451395E-5 0.1152 AML other m 2020-09-29T18:54:05.66
IV.INTR.HNE. ML:1.5 0.0001151999655 0.6272 AML other m 2020-09-29T18:54:05.18
IV.INTR.HNN. ML:1.4 8.5033635E-5 0.4864 AML other m 2020-09-29T18:54:05.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download