Earthquake with magnitude of ML 1.6 on date 23-10-2020 and time 05:05:41 (Italy) in region 4 km SE Venarotta (AP)

A magnitude ML 1.6 earthquake occured in region: 4 km SE Venarotta (AP), on

  • 23-10-2020 03:05:41 (UTC)
  • 23-10-2020 05:05:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.52 at 20 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Venarotta AP 4 2066 2066
Roccafluvione AP 4 2010 4076
Ascoli Piceno AP 5 49407 53483
Palmiano AP 7 196 53679
Folignano AP 10 9241 62920
Rotella AP 12 906 63826
Force AP 12 1354 65180
Castignano AP 12 2796 67976
Appignano del Tronto AP 13 1785 69761
Acquasanta Terme AP 13 2916 72677
Valle Castellana TE 14 977 73654
Montedinove AP 14 488 74142
Maltignano AP 14 2401 76543
Comunanza AP 14 3166 79709
Civitella del Tronto TE 15 5116 84825
Montegallo AP 15 523 85348
Montefalcone Appennino FM 16 424 85772
Castel di Lama AP 16 8634 94406
Montalto delle Marche AP 16 2122 96528
Montemonaco AP 16 604 97132
Sant'Egidio alla Vibrata TE 17 9811 106943
Offida AP 17 5058 112001
Montefortino FM 17 1178 113179
Smerillo FM 18 365 113544
Castorano AP 18 2380 115924
Montelparo FM 18 778 116702
Ancarano TE 18 1857 118559
Santa Vittoria in Matenano FM 18 1330 119889
Colli del Tronto AP 19 3668 123557
Rocca Santa Maria TE 19 537 124094
Amandola FM 19 3629 127723
Campli TE 20 7209 134932
Monte Rinaldo FM 20 379 135311
Cossignano AP 20 978 136289

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Teramo (54892 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
64 Km NW of Montesilvano (53738 inhabitants)
67 Km E of Foligno (57155 inhabitants)
72 Km NW of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
78 Km E of Terni (111501 inhabitants)
85 Km S of Ancona (100861 inhabitants)
96 Km E of Perugia (166134 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 1.6 2020-10-23
03:05:41
42.86 13.52 20 2021-02-26
14:56:00
Bollettino Sismico Italiano INGV 84151621
Reviewed
Rev100
ML 1.6 2020-10-23
03:05:41
42.85 13.52 20 2020-10-23
03:10:55
Sala Sismica INGV-Roma 84046091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-23 03:05:41 ± 0.1
Latitude 42.86 ± 0.00
Longitude 13.52 ± 0.01
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84151621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 449
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
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 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.1349
Epicentral distance of station farthest from the epicenter (degree) 0.6565
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 84046091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-23 03:10:55

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 84151621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-22 16:20:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2020-10-23T03:05:58.02 0.6 undecidable manual S 234 0.4335 104 0.5 42
IV.RM33.EHZ. 2020-10-23T03:05:57.54 0.3 undecidable manual S 213 0.4137 105 0.6 60
IV.GIGS.HHZ. 2020-10-23T03:05:56.41 0.6 undecidable manual S 174 0.4047 106 -0.29 45
IV.FDMO.HHZ. 2020-10-23T03:05:55.40 0.6 undecidable manual S 300 0.3642 108 -0.13 47
IV.ASSB.HHZ. 2020-10-23T03:05:55.48 0.6 undecidable manual P 287 0.6565 99 0.82 36
IV.CSP1.EHZ. 2020-10-23T03:05:54.66 0.6 undecidable manual S 316 0.3292 110 0.1 48
IV.NRCA.HHZ. 2020-10-23T03:05:53.62 0.3 undecidable manual S 266 0.2977 113 -0.08 72
IV.T1299.HNZ. 2020-10-23T03:05:53.79 0.3 undecidable manual S 218 0.2824 114 0.52 64
IV.SMA1.EHZ. 2020-10-23T03:05:52.89 0.3 undecidable manual S 211 0.2635 116 0.13 71
IV.VCEL.EHZ. 2020-10-23T03:05:52.26 0.3 undecidable manual P 153 0.518 102 -0.07 68
IV.TERO.HHZ. 2020-10-23T03:05:52.10 0.3 undecidable manual S 165 0.2419 119 -0.09 73
IV.GUMA.HNZ. 2020-10-23T03:05:52.39 0.3 undecidable manual S 327 0.2464 118 0.08 73
IV.MC2.EHZ. 2020-10-23T03:05:52.52 0.3 undecidable manual S 283 0.2482 118 0.15 71
IV.EL6.EHZ. 2020-10-23T03:05:52.99 0.6 undecidable manual P 327 0.5621 100 -0.08 45
IV.SAP2.EHZ. 2020-10-23T03:05:52.82 0.3 undecidable manual S 340 0.2554 117 0.26 71
IV.MNTT.EHZ. 2020-10-23T03:05:51.83 0.3 undecidable manual S 15 0.2131 123 0.37 70
IV.LNSS.HNZ. 2020-10-23T03:05:51.00 0.1 undecidable manual P 234 0.4335 104 0.08 93
IV.OFFI.HHZ. 2020-10-23T03:05:50.06 0.3 undecidable manual S 57 0.1448 136 0.17 73
IV.GIGS.HHZ. 2020-10-23T03:05:50.05 0.3 undecidable manual P 174 0.4047 106 -0.39 66
IV.RM33.EHZ. 2020-10-23T03:05:50.68 0.3 undecidable manual P 213 0.4137 105 0.1 70
IV.CAMP.HHZ. 2020-10-23T03:05:49.01 0.3 undecidable manual P 194 0.331 110 -0.22 69
IV.MTRA.HNZ. 2020-10-23T03:05:49.28 0.3 undecidable manual S 222 0.1349 138 -0.4 70
IV.PF6.EHZ. 2020-10-23T03:05:49.66 0.3 undecidable manual P 320 0.3687 108 -0.18 69
IV.MF5.EHZ. 2020-10-23T03:05:49.50 0.3 undecidable manual S 342 0.1385 137 -0.26 71
IV.FDMO.HHZ. 2020-10-23T03:05:49.55 0.3 undecidable manual P 300 0.3642 108 -0.22 68
IV.MMO1.EHZ. 2020-10-23T03:05:49.62 0.3 undecidable manual S 287 0.1475 135 -0.33 70
IV.SAP2.EHZ. 2020-10-23T03:05:48.52 0.1 undecidable manual P 340 0.2554 117 0.46 90
IV.SMA1.EHZ. 2020-10-23T03:05:48.15 0.1 positive manual P 211 0.2635 116 -0.02 98
IV.NRCA.HHZ. 2020-10-23T03:05:48.67 0.1 positive manual P 266 0.2977 113 -0.04 96
IV.CSP1.EHZ. 2020-10-23T03:05:48.77 0.1 undecidable manual P 316 0.3292 110 -0.44 87
IV.T1299.HNZ. 2020-10-23T03:05:48.60 0.1 undecidable manual P 218 0.2824 114 0.13 95
IV.MC2.EHZ. 2020-10-23T03:05:47.93 0.3 undecidable manual P 283 0.2482 118 -0.01 73
IV.GUMA.HNZ. 2020-10-23T03:05:47.88 0.1 undecidable manual P 327 0.2464 118 -0.03 97
IV.MNTT.EHZ. 2020-10-23T03:05:47.57 0.1 positive manual P 15 0.2131 123 0.15 97
IV.TERO.HHZ. 2020-10-23T03:05:47.63 0.3 undecidable manual P 165 0.2419 119 -0.21 70
IV.MMO1.EHZ. 2020-10-23T03:05:46.36 0.1 undecidable manual P 287 0.1475 135 -0.19 96
IV.OFFI.HHZ. 2020-10-23T03:05:46.57 0.1 negative manual P 57 0.1448 136 0.06 100
IV.MTRA.HNZ. 2020-10-23T03:05:46.26 0.1 negative manual P 222 0.1349 138 -0.13 98
IV.MF5.EHZ. 2020-10-23T03:05:46.26 0.1 undecidable manual P 342 0.1385 137 -0.18 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:1.7 0.0003323286 0.08 AML other m 2020-10-23T03:05:49.78
IV.MTRA.EHE. ML:1.8 0.0004315 0.48 AML other m 2020-10-23T03:05:49.78
IV.MTRA.EHN. ML:1.4 0.000175 0.42 AML other m 2020-10-23T03:05:49.76
IV.MTRA.HNN. ML:1.5 0.00019750665 0.2896 AML other m 2020-10-23T03:05:50.80
IV.TERO.HNN. ML:1.6 0.00017495985 0.1008 AML other m 2020-10-23T03:05:52.29
IV.TERO.HHN. ML:1.5 0.000135 0.08 AML other m 2020-10-23T03:05:52.34
IV.TERO.HHE. ML:1.5 0.0001435 0.16 AML other m 2020-10-23T03:05:52.32
IV.TERO.HNE. ML:1.6 0.00019052157 0.1792 AML other m 2020-10-23T03:05:52.32
IV.MNTT.EHN. ML:0 0.0003625 0.34 AML other m 2020-10-23T03:05:52.50
IV.SMA1.EHN. ML:1.4 0.0001085 0.28 AML other m 2020-10-23T03:05:53.20
IV.SMA1.EHE. ML:1.4 9.395E-5 0.6 AML other m 2020-10-23T03:05:53.30
IV.MNTT.EHE. ML:0 0.0002775 0.62 AML other m 2020-10-23T03:05:54.28
IV.NRCA.HHE. ML:1.9 0.0002935 0.46 AML other m 2020-10-23T03:05:54.32
IV.NRCA.HHN. ML:1.9 0.0003195 0.12 AML other m 2020-10-23T03:05:54.39
IV.NRCA.HNN. ML:1.8 0.000264688 0.0992 AML other m 2020-10-23T03:05:54.34
IV.RM33.EHN. ML:1.2 4.545E-5 0.28 AML other m 2020-10-23T03:05:57.95
IV.RM33.EHE. ML:1.2 4.37E-5 0.66 AML other m 2020-10-23T03:05:58.70
IV.CAMP.HHN. ML:0.8 2.05E-5 0.38 AML other m 2020-10-23T03:05:59.43
IV.CAMP.HHE. ML:0.8 1.755E-5 0.72 AML other m 2020-10-23T03:06:01.18
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