Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 29-10-2020 and time 05:06:43 (UTC) in region 5 km W Montemonaco (AP)

A magnitude ML 1.8 earthquake occured in region: 5 km W Montemonaco (AP), on

  • 29-10-2020 05:06:43 (UTC)
  • 29-10-2020 06:06:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9010, 13.2690 at 23 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 5 604 604
Montefortino FM 8 1178 1782
Montegallo AP 8 523 2305
Castelsantangelo sul Nera MC 9 281 2586
Bolognola MC 11 142 2728
Amandola FM 11 3629 6357
Ussita MC 12 444 6801
Comunanza AP 14 3166 9967
Arquata del Tronto AP 14 1178 11145
Visso MC 15 1107 12252
Sarnano MC 15 3264 15516
Palmiano AP 16 196 15712
Acquacanina MC 16 121 15833
Roccafluvione AP 17 2010 17843
Fiastra MC 18 559 18402
Montefalcone Appennino FM 18 424 18826
Venarotta AP 18 2066 20892
Smerillo FM 19 365 21257
Acquasanta Terme AP 19 2916 24173
Norcia PG 19 4957 29130
Preci PG 19 724 29854
Gualdo MC 19 815 30669
Force AP 19 1354 32023

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
62 Km N of L'Aquila (69753 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
82 Km S of Ancona (100861 inhabitants)
84 Km NW of Montesilvano (53738 inhabitants)
91 Km NW of Pescara (121014 inhabitants)
96 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 1.8 2020-10-29
05:06:43		 42.9013 13.269 23 2021-02-26
14:56:05		 Bollettino Sismico Italiano INGV 84665161
Reviewed
Rev100 		ML 1.9 2020-10-29
05:06:43		 42.8968 13.2727 23 2020-10-29
05:22:36		 Sala Sismica INGV-Roma 84229501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 05:06:43 ± 0.09
Latitude 42.9013 ± 0.0027
Longitude 13.2690 ± 0.0049
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84665161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 398
Semi-minor axis of confidence ellipse (meter) 120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 95
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.52161
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 84665161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-05 11:10:39

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 84229501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 05:22:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2020-10-29T05:07:03.04 0.3 undecidable manual S 259 57.8976 104 1.12 49
IV.ASSB.HHZ. 2020-10-29T05:07:00.93 0.1 undecidable manual S 288 51.9036 106 0.52 84
IV.EL6.EHZ. 2020-10-29T05:07:00.06 0.1 undecidable manual S 344 49.4172 107 0.32 88
IV.SNTG.HHE. 2020-10-29T05:06:59.47 0.3 undecidable manual S 326 47.4192 108 0.23 68
IV.RM33.EHZ. 2020-10-29T05:06:58.58 0.1 undecidable manual S 186 43.7229 110 0.25 90
IV.GAVE.EHZ. 2020-10-29T05:06:57.41 0.1 undecidable manual S 233 38.3283 113 0.43 88
IV.TERO.HHZ. 2020-10-29T05:06:57.67 0.3 undecidable manual S 138 41.2254 111 -0.02 71
IV.LNSS.HHZ. 2020-10-29T05:06:57.11 0.1 undecidable manual S 209 38.0286 114 0.21 92
IV.MML1.HNE. 2020-10-29T05:06:55.82 0.1 undecidable manual S 314 33.744 117 -0.04 95
IV.MDAR.HNN. 2020-10-29T05:06:55.91 0.3 undecidable manual S 342 33.9438 117 0.01 72
IV.MNTP.HNZ. 2020-10-29T05:06:55.94 0.3 undecidable manual S 32 30.8469 119 0.76 58
IV.CESI.HHZ. 2020-10-29T05:06:55.44 0.1 undecidable manual S 291 31.746 119 0.05 97
IV.T1299.HNZ. 2020-10-29T05:06:55.30 0.1 undecidable manual S 178 29.6481 121 0.39 90
IV.SMA1.EHZ. 2020-10-29T05:06:54.91 0.1 undecidable manual S 170 30.5472 120 -0.2 93
IV.MOMA.HHZ. 2020-10-29T05:06:54.54 0.1 undecidable manual P 259 57.8976 104 0.35 86
IV.CSP1.EHZ. 2020-10-29T05:06:53.07 0.1 undecidable manual S 346 21.7671 130 -0.12 96
IT.MTCL.HGZ. 2020-10-29T05:06:53.61 0.3 undecidable manual S 295 24.1536 127 -0.08 72
IV.SAP2.EHZ. 2020-10-29T05:06:53.96 0.1 undecidable manual S 26 24.0537 127 0.28 92
IV.ASSB.HHZ. 2020-10-29T05:06:53.12 0.1 undecidable manual P 288 51.9036 106 -0.19 90
IV.GUMA.HHZ. 2020-10-29T05:06:53.05 0.1 undecidable manual S 17 18.6702 135 0.46 90
IV.PF6.EHZ. 2020-10-29T05:06:53.96 0.1 undecidable manual S 347 26.9508 124 -0.33 91
IV.MTRA.EHZ. 2020-10-29T05:06:52.52 0.1 undecidable manual S 147 19.0698 135 -0.15 96
IV.EL6.EHZ. 2020-10-29T05:06:52.61 0.1 undecidable manual P 344 49.4172 107 -0.32 88
IV.SNTG.HHE. 2020-10-29T05:06:52.26 0.3 undecidable manual P 326 47.4192 108 -0.38 65
IV.FDMO.HHZ. 2020-10-29T05:06:52.89 0.1 undecidable manual S 316 21.0678 132 -0.15 95
IV.MF5.EHZ. 2020-10-29T05:06:52.94 0.1 undecidable manual S 58 18.1707 136 0.44 90
IV.FEMA.HNZ. 2020-10-29T05:06:52.84 0.1 undecidable manual S 291 19.0698 135 0.18 96
IV.LNSS.HHZ. 2020-10-29T05:06:51.21 0.1 undecidable manual P 209 38.0286 114 -0.08 94
IV.GAVE.EHZ. 2020-10-29T05:06:51.34 0.1 undecidable manual P 233 38.3283 113 0.01 96
IV.MC2.EHZ. 2020-10-29T05:06:51.12 0.1 undecidable manual S 280 6.5934 162 0.24 97
IV.OFFI.HHZ. 2020-10-29T05:06:51.03 0.3 undecidable manual P 84 34.0437 116 0.29 67
IV.TERO.HHZ. 2020-10-29T05:06:51.51 0.1 undecidable manual P 138 41.2254 111 -0.23 92
IV.NRCA.HHZ. 2020-10-29T05:06:51.84 0.1 undecidable manual S 239 14.6742 143 -0.05 98
IV.RM33.EHZ. 2020-10-29T05:06:51.96 0.1 positive manual P 186 43.7229 110 -0.15 92
IV.MMO1.EHZ. 2020-10-29T05:06:50.44 0.1 undecidable manual S 93 4.6953 167 -0.3 95
IV.MNTP.HNZ. 2020-10-29T05:06:50.53 0.3 undecidable manual P 32 30.8469 119 0.24 69
IV.CESI.HHZ. 2020-10-29T05:06:50.30 0.1 undecidable manual P 291 31.746 119 -0.12 94
IV.T1299.HNZ. 2020-10-29T05:06:50.06 0.1 undecidable manual P 178 29.6481 121 -0.08 96
IV.MML1.HNE. 2020-10-29T05:06:50.39 0.1 negative manual P 314 33.744 117 -0.29 91
IV.MNTT.EHZ. 2020-10-29T05:06:50.60 0.1 undecidable manual P 56 31.9458 118 0.16 93
IV.MDAR.HNN. 2020-10-29T05:06:50.42 0.3 undecidable manual P 342 33.9438 117 -0.29 68
IV.SMA1.EHZ. 2020-10-29T05:06:49.96 0.1 undecidable manual P 170 30.5472 120 -0.29 92
IV.PF6.EHZ. 2020-10-29T05:06:49.38 0.1 negative manual P 347 26.9508 124 -0.4 90
IT.MTCL.HGZ. 2020-10-29T05:06:49.14 0.3 undecidable manual P 295 24.1536 127 -0.3 69
IV.SAP2.EHZ. 2020-10-29T05:06:49.55 0.1 positive manual P 26 24.0537 127 0.12 95
IV.GUMA.HHZ. 2020-10-29T05:06:48.75 0.1 negative manual P 17 18.6702 135 -0.05 98
IV.NRCA.HHZ. 2020-10-29T05:06:48.23 0.1 negative manual P 239 14.6742 143 -0.16 96
IV.MF5.EHZ. 2020-10-29T05:06:48.78 0.1 positive manual P 58 18.1707 136 0.03 98
IV.FEMA.HNZ. 2020-10-29T05:06:48.71 0.1 undecidable manual P 291 19.0698 135 -0.13 96
IV.MTRA.EHZ. 2020-10-29T05:06:48.56 0.1 undecidable manual P 147 19.0698 135 -0.28 94
IV.CSP1.EHZ. 2020-10-29T05:06:48.88 0.1 negative manual P 346 21.7671 130 -0.26 93
IV.FDMO.HHZ. 2020-10-29T05:06:48.71 0.1 negative manual P 316 21.0678 132 -0.35 92
IV.MMO1.EHZ. 2020-10-29T05:06:47.44 0.1 negative manual P 93 4.6953 167 -0.29 96
IV.MC2.EHZ. 2020-10-29T05:06:47.77 0.1 negative manual P 280 6.5934 162 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.9 0.00054205445 0.1408 AML other m 2020-10-29T05:06:52.06
IV.NRCA.HNE. ML:1.9 0.00049352075 0.1408 AML other m 2020-10-29T05:06:52.07
IV.NRCA.HHN. ML:2.2 0.0010065 0.12 AML other m 2020-10-29T05:06:52.10
IV.NRCA.HNN. ML:2.2 0.000978 0.12 AML other m 2020-10-29T05:06:52.17
IV.FDMO.HHE. ML:1.5 0.00017212925500000002 0.1184 AML other m 2020-10-29T05:06:52.00
IV.CSP1.EHE. ML:1.9 0.0004265 0.38 AML other m 2020-10-29T05:06:53.37
IV.CSP1.EHN. ML:2.0 0.00052112945 0.2016 AML other m 2020-10-29T05:06:53.28
IV.GUMA.HHE. ML:2.1 0.0006184703000000001 0.48 AML other m 2020-10-29T05:06:53.58
IV.GUMA.HHN. ML:2.4 0.00124 0.28 AML other m 2020-10-29T05:06:53.36
IV.MF5.EHN. ML:2.1 0.0007205 0.48 AML other m 2020-10-29T05:06:53.26
IV.FDMO.HHN. ML:2.0 0.0005875 0.62 AML other m 2020-10-29T05:06:53.20
IV.MF5.EHE. ML:2.0 0.0005049230499999999 0.4 AML other m 2020-10-29T05:06:53.57
IV.SAP2.EHE. ML:1.6 0.000171570005 0.1376 AML other m 2020-10-29T05:06:54.38
IV.SAP2.EHN. ML:2.2 0.0008349588500000001 0.2624 AML other m 2020-10-29T05:06:54.46
IV.SMA1.EHN. ML:1.1 0.000048796519999999994 0.4384 AML other m 2020-10-29T05:06:55.18
IV.SMA1.EHE. ML:1.4 0.00010300000000000001 0.56 AML other m 2020-10-29T05:06:55.46
IV.CESI.HHE. ML:1.9 0.00027287709999999996 0.2816 AML other m 2020-10-29T05:06:55.84
IV.CESI.HNE. ML:1.9 0.00027589920000000004 0.2912 AML other m 2020-10-29T05:06:55.84
IV.CESI.HNN. ML:2.1 0.00041936815000000004 0.2496 AML other m 2020-10-29T05:06:56.12
IV.CESI.HHN. ML:2.1 0.00042300000000000004 1.02 AML other m 2020-10-29T05:06:56.00
IV.LNSS.HHE. ML:1.4 0.00008375435000000001 0.3392 AML other m 2020-10-29T05:06:57.52
IV.LNSS.HHN. ML:1.6 0.0001235 0.3 AML other m 2020-10-29T05:06:57.38
IV.TERO.HHN. ML:1.7 0.00013850515 0.3392 AML other m 2020-10-29T05:06:57.86
IV.TERO.HHE. ML:1.3 0.00006199983 0.4 AML other m 2020-10-29T05:06:58.13
IV.GAVE.EHE. ML:1.8 0.00019749254999999998 0.2016 AML other m 2020-10-29T05:06:58.15
IV.GAVE.EHN. ML:2.0 0.000326 1.2 AML other m 2020-10-29T05:06:58.25
IV.RM33.EHN. ML:1.5 0.00008288817 0.16 AML other m 2020-10-29T05:06:58.88
IV.EL6.EHN. ML:1.7 0.000122110405 0.2176 AML other m 2020-10-29T05:07:00.57
IV.EL6.EHE. ML:1.6 0.00010697115 0.3392 AML other m 2020-10-29T05:07:00.55
IV.ASSB.HHN. ML:1.6 0.00008116976000000001 0.2592 AML other m 2020-10-29T05:07:01.38
IV.ASSB.HHE. ML:1.6 0.00009275 0.32 AML other m 2020-10-29T05:07:01.60
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