Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 29-07-2019 and time 12:17:20 (UTC) in region 4 km SW Appignano del Tronto (AP)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Appignano del Tronto (AP), on

  • 29-07-2019 12:17:20 (UTC)
  • 29-07-2019 14:17:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8710, 13.6320 at 25 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.

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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
Appignano del Tronto AP 4 1785 1785
Ascoli Piceno AP 5 49407 51192
Folignano AP 6 9241 60433
Maltignano AP 6 2401 62834
Castel di Lama AP 7 8634 71468
Castignano AP 8 2796 74264
Castorano AP 9 2380 76644
Sant'Egidio alla Vibrata TE 9 9811 86455
Offida AP 9 5058 91513
Colli del Tronto AP 10 3668 95181
Ancarano TE 10 1857 97038
Rotella AP 11 906 97944
Civitella del Tronto TE 11 5116 103060
Venarotta AP 11 2066 105126
Montedinove AP 12 488 105614
Spinetoli AP 12 7215 112829
Roccafluvione AP 13 2010 114839
Torano Nuovo TE 13 1611 116450
Montalto delle Marche AP 13 2122 118572
Monsampolo del Tronto AP 13 4611 123183
Cossignano AP 14 978 124161
Palmiano AP 14 196 124357
Force AP 15 1354 125711
Controguerra TE 16 2436 128147
Nereto TE 16 5242 133389
Campli TE 17 7209 140598
Sant'Omero TE 17 5243 145841
Acquaviva Picena AP 17 3831 149672
Corropoli TE 17 5045 154717
Monteprandone AP 18 12655 167372
Ortezzano FM 18 774 168146
Ripatransone AP 18 4309 172455
Monte Rinaldo FM 18 379 172834
Montelparo FM 18 778 173612
Carassai AP 19 1100 174712
Valle Castellana TE 19 977 175689
Montefalcone Appennino FM 19 424 176113
Colonnella TE 19 3734 179847
Bellante TE 20 7152 186999
Santa Vittoria in Matenano FM 20 1330 188329
Monte Vidon Combatte FM 20 433 188762

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Teramo (54892 inhabitants)
58 Km NW of Montesilvano (53738 inhabitants)
61 Km NE of L'Aquila (69753 inhabitants)
66 Km NW of Pescara (121014 inhabitants)
73 Km NW of Chieti (51815 inhabitants)
76 Km E of Foligno (57155 inhabitants)
84 Km S of Ancona (100861 inhabitants)
88 Km E of Terni (111501 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
Reviewed
Rev100 		ML 1.4 2019-07-29
12:17:20		 42.8713 13.632 25 2019-07-29
12:26:14		 Sala Sismica INGV-Roma 70993521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-29 12:17:20 ± 0.19
Latitude 42.8713 ± 0.0054
Longitude 13.6320 ± 0.0098
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70993521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 715
Semi-minor axis of confidence ellipse (meter) 423
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.47484
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 70993521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-29 12:26:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2019-07-29T12:17:38.41 0.3 undecidable manual S 220 52.7028 108 0.74 57
IV.FDMO.HHZ. 2019-07-29T12:17:36.51 0.1 undecidable manual S 293 47.9187 111 0.05 95
IV.CSP1.EHZ. 2019-07-29T12:17:35.11 0.1 undecidable manual S 305 42.4242 113 0 95
IV.GIGS.HHE. 2019-07-29T12:17:35.99 0.1 undecidable manual S 186 46.62 111 -0.17 94
IV.NRCA.HHZ. 2019-07-29T12:17:35.38 0.1 undecidable manual S 264 42.3243 114 0.3 91
IV.SMA1.EHZ. 2019-07-29T12:17:33.74 0.1 undecidable manual S 222 36.0417 118 0.17 93
IV.GUMA.HHZ. 2019-07-29T12:17:32.84 0.1 undecidable manual S 311 32.1456 121 0.18 95
IV.MNTT.EHZ. 2019-07-29T12:17:31.16 0.1 undecidable manual S 352 21.3675 134 0.78 81
IV.MTRA.EHZ. 2019-07-29T12:17:30.41 0.1 undecidable manual S 236 22.9548 132 -0.29 95
IV.MMO1.EHZ. 2019-07-29T12:17:30.72 0.1 undecidable manual S 277 24.9528 129 -0.39 91
IV.RM33.EHZ. 2019-07-29T12:17:30.65 0.1 undecidable manual P 220 52.7028 108 0.22 90
IV.MF5.EHZ. 2019-07-29T12:17:29.70 0.1 undecidable manual S 313 19.0698 138 -0.25 95
IV.GIGS.HHE. 2019-07-29T12:17:29.32 0.1 undecidable manual P 186 46.62 111 -0.24 92
IV.FDMO.HHZ. 2019-07-29T12:17:29.54 0.1 undecidable manual P 293 47.9187 111 -0.19 91
IV.CSP1.EHZ. 2019-07-29T12:17:28.79 0.1 undecidable manual P 305 42.4242 113 -0.17 92
IV.NRCA.HHZ. 2019-07-29T12:17:28.95 0.1 undecidable manual P 264 42.3243 114 0.01 96
IV.OFFI.HHE. 2019-07-29T12:17:28.30 0.1 undecidable manual S 32 8.2806 159 -0.14 100
IV.SMA1.EHZ. 2019-07-29T12:17:28.03 0.1 undecidable manual P 222 36.0417 118 -0.04 97
IV.GUMA.HHZ. 2019-07-29T12:17:27.53 0.1 undecidable manual P 311 32.1456 121 -0.01 97
IV.MMO1.EHZ. 2019-07-29T12:17:26.45 0.1 undecidable manual P 277 24.9528 129 -0.19 95
IV.MNTT.EHZ. 2019-07-29T12:17:26.70 0.1 undecidable manual P 352 21.3675 134 0.48 91
IV.MTRA.EHZ. 2019-07-29T12:17:26.25 0.1 positive manual P 236 22.9548 132 -0.16 97
IV.MF5.EHZ. 2019-07-29T12:17:25.89 0.1 undecidable manual P 313 19.0698 138 -0.09 98
IV.OFFI.HHE. 2019-07-29T12:17:24.96 0.1 undecidable manual P 32 8.2806 159 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHN. ML:1.6 0.00021750000000000003 0.48 AML other m 2019-07-29T12:17:30.05
IV.MTRA.EHE. ML:1.6 0.00016949999999999997 0.56 AML other m 2019-07-29T12:17:30.65
IV.MTRA.EHN. ML:1.5 0.00013350000000000002 0.24 AML other m 2019-07-29T12:17:30.93
IV.NRCA.HHN. ML:1.9 0.0002295 1.6 AML other m 2019-07-29T12:17:35.88
IV.NRCA.HHE. ML:1.6 0.00011895 0.16 AML other m 2019-07-29T12:17:36.12
IV.GUMA.HHE. ML:1.4 0.00008793885 0.3392 AML other m 2019-07-29T12:17:36.11
IV.SMA1.EHE. ML:1.2 0.000051482195 0.096 AML other m 2019-07-29T12:17:34.05
IV.SMA1.EHN. ML:1.2 0.000050395194999999994 0.096 AML other m 2019-07-29T12:17:34.25
IV.FDMO.HHE. ML:1.0 0.000026045145 0.1792 AML other m 2019-07-29T12:17:36.99
IV.FDMO.HHN. ML:0.9 0.000021458095 0.096 AML other m 2019-07-29T12:17:36.75
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