Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 29-10-2020 and time 15:02:02 (UTC) in region 4 km W Montemonaco (AP)

A magnitude ML 1.7 earthquake occured in region: 4 km W Montemonaco (AP), on

  • 29-10-2020 15:02:02 (UTC)
  • 29-10-2020 16:02:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9050, 13.2780 at 24 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montemonaco AP 4 604 604
Montefortino FM 7 1178 1782
Montegallo AP 8 523 2305
Castelsantangelo sul Nera MC 10 281 2586
Amandola FM 11 3629 6215
Bolognola MC 11 142 6357
Ussita MC 12 444 6801
Comunanza AP 13 3166 9967
Arquata del Tronto AP 15 1178 11145
Palmiano AP 15 196 11341
Sarnano MC 15 3264 14605
Visso MC 16 1107 15712
Acquacanina MC 16 121 15833
Roccafluvione AP 17 2010 17843
Montefalcone Appennino FM 18 424 18267
Smerillo FM 18 365 18632
Fiastra MC 18 559 19191
Venarotta AP 18 2066 21257
Acquasanta Terme AP 18 2916 24173
Force AP 19 1354 25527
Gualdo MC 19 815 26342
Monte San Martino MC 19 765 27107
Norcia PG 20 4957 32064
Preci PG 20 724 32788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
62 Km N of L'Aquila (69753 inhabitants)
64 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
82 Km S of Ancona (100861 inhabitants)
83 Km NW of Montesilvano (53738 inhabitants)
91 Km NW of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2020-10-29
15:02:02		 42.9048 13.2785 24 2021-02-26
14:56:05		 Bollettino Sismico Italiano INGV 84695061
Reviewed
Rev100 		ML 1.7 2020-10-29
15:02:03		 42.9005 13.2722 23 2020-10-29
15:10:50		 Sala Sismica INGV-Roma 84239541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 15:02:02 ± 0.09
Latitude 42.9048 ± 0.0027
Longitude 13.2785 ± 0.0049
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84695061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 346
Semi-minor axis of confidence ellipse (meter) 106
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 52
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65650
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 25
Type of magnitude ML
Reference to an origin 84695061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-13 11:37:08

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 84239541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 15:10:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2020-10-29T15:02:31.87 3.0 positive manual Pn 3.34 0
IV.MURB.HHZ. 2020-10-29T15:02:25.35 0.3 undecidable manual S 303 72.8715 102 0.11 65
IV.VIVA.HHZ. 2020-10-29T15:02:23.83 3.0 negative manual P -0.06 0
IV.ATCC.EHZ. 2020-10-29T15:02:22.70 0.3 undecidable manual S 301 60.3951 105 0.71 56
IV.ASSB.HHZ. 2020-10-29T15:02:20.34 0.1 undecidable manual S 287 52.6029 107 0.35 85
IV.EL6.EHZ. 2020-10-29T15:02:19.69 0.1 undecidable manual S 343 49.2174 108 0.56 82
IV.NARO.HHZ. 2020-10-29T15:02:19.67 3.0 undecidable manual P 0.54 0
IV.RM33.EHZ. 2020-10-29T15:02:18.00 0.1 undecidable manual S 187 44.2224 111 0.12 91
IV.CAMP.HHE. 2020-10-29T15:02:17.79 0.3 undecidable manual S 165 42.3243 112 0.39 65
IV.TERO.HHZ. 2020-10-29T15:02:17.08 0.3 undecidable manual S 140 41.0256 113 0 71
IV.LNSS.HHZ. 2020-10-29T15:02:16.74 0.1 undecidable manual S 210 38.7279 114 0.22 90
IV.MURB.HHZ. 2020-10-29T15:02:16.05 0.3 undecidable manual P 303 72.8715 102 0.22 63
IV.GAVE.EHZ. 2020-10-29T15:02:16.99 0.1 undecidable manual S 233 39.1275 114 0.36 87
IV.MML1.HNE. 2020-10-29T15:02:15.37 0.1 undecidable manual S 313 34.0437 118 -0.01 96
IV.MDAR.HNN. 2020-10-29T15:02:15.25 0.3 undecidable manual S 341 33.744 118 -0.09 70
IV.CESI.HHZ. 2020-10-29T15:02:15.11 0.1 undecidable manual S 290 32.3454 119 0.11 93
IV.T1299.EHZ. 2020-10-29T15:02:14.71 0.1 undecidable manual S 179 30.0477 122 0.25 91
IV.SMA1.EHZ. 2020-10-29T15:02:14.59 0.1 undecidable manual S 171 30.747 121 -0.05 96
IV.ATCC.EHZ. 2020-10-29T15:02:13.83 0.3 undecidable manual P 301 60.3951 105 -0.13 67
IV.PF6.EHZ. 2020-10-29T15:02:13.42 0.3 undecidable manual S 345 26.751 125 -0.31 68
IV.SAP2.EHZ. 2020-10-29T15:02:13.53 0.3 undecidable manual S 25 23.4543 129 0.5 67
IT.MTCL.HGZ. 2020-10-29T15:02:13.15 0.1 undecidable manual S 294 24.753 128 -0.15 95
IV.MF5.EHZ. 2020-10-29T15:02:12.40 0.1 undecidable manual S 58 17.3715 139 0.54 89
IV.FEMA.HNZ. 2020-10-29T15:02:12.34 0.1 undecidable manual S 289 19.6692 135 0.06 97
IV.CSP1.EHZ. 2020-10-29T15:02:12.49 0.1 undecidable manual S 344 21.5673 132 -0.17 94
IV.EL6.EHZ. 2020-10-29T15:02:12.14 0.1 undecidable manual P 343 49.2174 108 -0.17 90
IV.FDMO.HHZ. 2020-10-29T15:02:12.37 0.1 undecidable manual S 313 21.3675 132 -0.23 93
IV.MTRA.EHZ. 2020-10-29T15:02:12.01 0.1 undecidable manual S 150 19.0698 136 -0.15 95
IV.ASSB.HHZ. 2020-10-29T15:02:12.69 0.1 undecidable manual P 287 52.6029 107 -0.11 91
IV.GUMA.HHZ. 2020-10-29T15:02:12.55 0.1 undecidable manual S 15 18.0708 138 0.55 89
IV.TERO.HHZ. 2020-10-29T15:02:11.18 0.3 undecidable manual P 140 41.0256 113 0.06 70
IV.NRCA.HHZ. 2020-10-29T15:02:11.30 0.1 undecidable manual S 239 15.4734 142 -0.25 94
IV.RM33.EHZ. 2020-10-29T15:02:11.39 0.1 positive manual P 187 44.2224 111 -0.19 91
IV.CAMP.HHE. 2020-10-29T15:02:11.21 0.3 undecidable manual P 165 42.3243 112 -0.09 70
IV.LNSS.HHZ. 2020-10-29T15:02:10.68 0.1 positive manual P 210 38.7279 114 -0.12 94
IV.GAVE.EHZ. 2020-10-29T15:02:10.86 0.1 undecidable manual P 233 39.1275 114 0 94
IV.MC2.EHZ. 2020-10-29T15:02:10.52 0.1 undecidable manual S 276 7.2927 161 0.02 100
IV.SMA1.EHZ. 2020-10-29T15:02:09.63 0.1 positive manual P 171 30.747 121 -0.08 95
IV.MDAR.HNN. 2020-10-29T15:02:09.85 0.3 undecidable manual P 341 33.744 118 -0.26 68
IV.CESI.HHZ. 2020-10-29T15:02:09.76 0.1 negative manual P 290 32.3454 119 -0.16 94
IV.T1299.EHZ. 2020-10-29T15:02:09.49 0.1 undecidable manual P 179 30.0477 122 -0.12 95
IV.MMO1.EHZ. 2020-10-29T15:02:09.91 0.1 undecidable manual S 99 3.996 169 -0.36 92
IV.MML1.HNE. 2020-10-29T15:02:09.88 0.1 negative manual P 313 34.0437 118 -0.27 91
IV.FDMO.HHZ. 2020-10-29T15:02:08.22 0.1 negative manual P 313 21.3675 132 -0.32 92
IV.MTRA.EHZ. 2020-10-29T15:02:08.42 0.1 undecidable manual P 150 19.0698 136 0.14 96
IV.GUMA.HHZ. 2020-10-29T15:02:08.27 0.1 negative manual P 15 18.0708 138 0.08 97
IT.MTCL.HGZ. 2020-10-29T15:02:08.65 0.1 undecidable manual P 294 24.753 128 -0.29 92
IV.MF5.EHZ. 2020-10-29T15:02:08.29 0.1 positive manual P 58 17.3715 139 0.18 95
IV.PF6.EHZ. 2020-10-29T15:02:08.84 0.3 undecidable manual P 345 26.751 125 -0.35 68
IV.FEMA.HNZ. 2020-10-29T15:02:08.21 0.1 undecidable manual P 289 19.6692 135 -0.14 96
IV.CSP1.EHZ. 2020-10-29T15:02:08.39 0.1 negative manual P 344 21.5673 132 -0.18 94
IV.SAP2.EHZ. 2020-10-29T15:02:08.85 0.3 undecidable manual P 25 23.4543 129 0.07 72
IV.MC2.EHZ. 2020-10-29T15:02:07.27 0.1 negative manual P 276 7.2927 161 -0.05 99
IV.NRCA.HHZ. 2020-10-29T15:02:07.74 0.1 undecidable manual P 239 15.4734 142 -0.19 95
IV.MMO1.EHZ. 2020-10-29T15:02:06.95 0.1 negative manual P 99 3.996 169 -0.24 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.0 0.0005249819999999999 0.128 AML other m 2020-10-29T15:02:11.55
IV.NRCA.HNN. ML:2.2 0.0009321283 0.1664 AML other m 2020-10-29T15:02:11.72
IV.NRCA.HHN. ML:2.2 0.0009567380000000001 0.1536 AML other m 2020-10-29T15:02:11.81
IV.NRCA.HHE. ML:2.3 0.00102474775 0.1024 AML other m 2020-10-29T15:02:11.72
IV.FDMO.HHE. ML:1.4 0.00012300630000000002 0.1024 AML other m 2020-10-29T15:02:12.74
IV.FDMO.HHN. ML:1.7 0.00022444229999999998 0.2432 AML other m 2020-10-29T15:02:12.69
IV.MF5.EHE. ML:1.7 0.00026237075 0.4736 AML other m 2020-10-29T15:02:13.68
IV.MF5.EHN. ML:1.6 0.00020468504999999999 0.2176 AML other m 2020-10-29T15:02:12.87
IV.CSP1.EHN. ML:1.8 0.00026781540000000005 0.1792 AML other m 2020-10-29T15:02:12.65
IV.CSP1.EHE. ML:1.8 0.000318814 0.1664 AML other m 2020-10-29T15:02:12.90
IV.CESI.HHE. ML:1.8 0.0002146512 0.3072 AML other m 2020-10-29T15:02:15.48
IV.CESI.HHN. ML:1.7 0.0001804582 0.128 AML other m 2020-10-29T15:02:15.88
IV.CESI.HNE. ML:1.8 0.00021981675 0.32 AML other m 2020-10-29T15:02:15.48
IV.LNSS.HNE. ML:1.7 0.000142758925 0.256 AML other m 2020-10-29T15:02:17.34
IV.LNSS.HHE. ML:1.7 0.0001424077 0.2432 AML other m 2020-10-29T15:02:17.34
IV.LNSS.HHN. ML:1.6 0.0001229487 0.2944 AML other m 2020-10-29T15:02:17.32
IV.GAVE.EHN. ML:2.0 0.00027925944999999995 0.2432 AML other m 2020-10-29T15:02:17.87
IV.GAVE.EHE. ML:1.6 0.000108144455 0.4224 AML other m 2020-10-29T15:02:17.64
IV.TERO.HHE. ML:0.9 0.000023704415 0.1536 AML other m 2020-10-29T15:02:17.53
IV.TERO.HHN. ML:1.4 0.00006258231499999999 0.3584 AML other m 2020-10-29T15:02:17.54
IV.RM33.EHN. ML:1.5 0.000078381645 0.1408 AML other m 2020-10-29T15:02:18.32
IV.RM33.EHE. ML:1.4 0.000069921225 0.1024 AML other m 2020-10-29T15:02:18.53
IV.EL6.EHN. ML:1.6 0.00009168526 0.2176 AML other m 2020-10-29T15:02:20.06
IV.EL6.EHE. ML:1.7 0.00012781093500000002 1.4592 AML other m 2020-10-29T15:02:19.86
IV.ASSB.HHE. ML:1.4 0.00005852796 0.1664 AML other m 2020-10-29T15:02:21.02
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