Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-10-2020 and time 06:54:01 (UTC) in region 4 km SE Venarotta (AP)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Venarotta (AP), on

  • 13-10-2020 06:54:01 (UTC)
  • 13-10-2020 08:54:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8640, 13.5320 at 18 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
Venarotta AP 4 2066 2066
Ascoli Piceno AP 4 49407 51473
Roccafluvione AP 5 2010 53483
Palmiano AP 7 196 53679
Folignano AP 10 9241 62920
Rotella AP 11 906 63826
Castignano AP 11 2796 66622
Force AP 12 1354 67976
Appignano del Tronto AP 12 1785 69761
Montedinove AP 13 488 70249
Maltignano AP 13 2401 72650
Comunanza AP 14 3166 75816
Acquasanta Terme AP 14 2916 78732
Valle Castellana TE 14 977 79709
Castel di Lama AP 15 8634 88343
Civitella del Tronto TE 15 5116 93459
Montefalcone Appennino FM 15 424 93883
Montalto delle Marche AP 15 2122 96005
Offida AP 15 5058 101063
Sant'Egidio alla Vibrata TE 16 9811 110874
Montegallo AP 16 523 111397
Castorano AP 17 2380 113777
Montemonaco AP 17 604 114381
Smerillo FM 17 365 114746
Montelparo FM 17 778 115524
Ancarano TE 17 1857 117381
Colli del Tronto AP 18 3668 121049
Santa Vittoria in Matenano FM 18 1330 122379
Montefortino FM 18 1178 123557
Cossignano AP 19 978 124535
Monte Rinaldo FM 19 379 124914
Amandola FM 19 3629 128543
Campli TE 20 7209 135752
Rocca Santa Maria TE 20 537 136289
Ortezzano FM 20 774 137063
Spinetoli AP 20 7215 144278

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Teramo (54892 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
64 Km NW of Montesilvano (53738 inhabitants)
68 Km E of Foligno (57155 inhabitants)
71 Km NW of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
80 Km E of Terni (111501 inhabitants)
84 Km S of Ancona (100861 inhabitants)
97 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 1.4 2020-10-13
06:54:01		 42.8637 13.5323 18 2021-02-26
14:56:00		 Bollettino Sismico Italiano INGV 84016161
Reviewed
Rev100 		ML 1.4 2020-10-13
06:54:01		 42.862 13.5418 19 2020-10-13
07:01:00		 Sala Sismica INGV-Roma 83748761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-13 06:54:01 ± 0.09
Latitude 42.8637 ± 0.0036
Longitude 13.5323 ± 0.0061
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84016161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 103
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 0.66370
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84016161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-22 07:03:28

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 83748761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-13 07:01:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-10-13T06:54:14.15 0.3 undecidable manual S 314 36.741 105 0.22 70
IV.ASSB.HHZ. 2020-10-13T06:54:13.93 0.6 undecidable manual P 286 73.6707 96 -0.34 42
IV.NRCA.HHZ. 2020-10-13T06:54:13.45 0.3 undecidable manual S 265 34.1436 106 0.17 71
IV.SMA1.EHZ. 2020-10-13T06:54:12.50 0.3 undecidable manual S 212 30.4473 109 0.16 72
IV.TERO.HHZ. 2020-10-13T06:54:11.74 0.6 undecidable manual S 168 27.3504 112 0.17 47
IV.MC2.EHZ. 2020-10-13T06:54:11.82 0.3 undecidable manual S 281 28.4493 111 -0.01 74
IV.MMO1.EHZ. 2020-10-13T06:54:09.33 0.3 undecidable manual S 283 17.1717 127 0.14 74
IV.MF5.EHZ. 2020-10-13T06:54:08.38 0.3 undecidable manual S 337 14.9739 132 -0.36 71
IV.NRCA.HHZ. 2020-10-13T06:54:08.21 0.1 undecidable manual P 265 34.1436 106 -0.07 96
IV.MTRA.EHZ. 2020-10-13T06:54:08.94 0.3 undecidable manual S 223 16.1727 129 -0.05 75
IV.CSP1.EHZ. 2020-10-13T06:54:08.45 0.3 undecidable manual P 314 36.741 105 -0.21 70
IV.MC2.EHZ. 2020-10-13T06:54:07.52 0.1 undecidable manual P 281 28.4493 111 0.08 97
IV.GUMA.HHZ. 2020-10-13T06:54:07.52 0.3 undecidable manual P 324 27.2505 112 0.24 71
IV.TERO.HHZ. 2020-10-13T06:54:07.17 0.1 undecidable manual P 168 27.3504 112 -0.12 97
IV.SMA1.EHZ. 2020-10-13T06:54:07.72 0.1 undecidable manual P 212 30.4473 109 -0.02 98
IV.MNTT.EHZ. 2020-10-13T06:54:06.76 0.3 undecidable manual P 13 22.5552 118 0.14 72
IV.OFFI.HHZ. 2020-10-13T06:54:05.98 1.0 undecidable manual P 58 14.7741 132 0.35 23
IV.MF5.EHZ. 2020-10-13T06:54:05.64 0.3 undecidable manual P 337 14.9739 132 -0.02 76
IV.MTRA.EHZ. 2020-10-13T06:54:05.74 0.1 undecidable manual P 223 16.1727 129 -0.06 100
IV.MMO1.EHZ. 2020-10-13T06:54:05.69 0.3 undecidable manual P 283 17.1717 127 -0.23 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:1.4 0.0001033 1.46 AML other m 2020-10-13T06:54:14.94
IV.TERO.HHE. ML:1.2 0.00007594999999999999 1.3 AML other m 2020-10-13T06:54:12.85
IV.MTRA.HNE. ML:1.6 0.00025366525 0.4896 AML other m 2020-10-13T06:54:09.36
IV.SMA1.EHN. ML:1.3 0.00008299308 1.5392 AML other m 2020-10-13T06:54:12.78
IV.SMA1.EHE. ML:1.3 0.00008825724 1.3792 AML other m 2020-10-13T06:54:12.66
IV.CSP1.EHN. ML:1.5 0.00011914265000000001 1.2192 AML other m 2020-10-13T06:54:15.14
IV.CSP1.EHE. ML:1.4 0.00009356368999999999 1.2 AML other m 2020-10-13T06:54:14.61
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