Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-07-2019 and time 23:50:22 (Italy) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 1.5 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 17-07-2019 21:50:22 (UTC)
  • 17-07-2019 23:50:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7540, 13.2280 at 11 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
Arquata del Tronto AP 6 1178 1178
Accumoli RI 7 667 1845
Norcia PG 12 4957 6802
Montegallo AP 13 523 7325
Amatrice RI 15 2657 9982
Acquasanta Terme AP 15 2916 12898
Cittareale RI 16 482 13380
Castelsantangelo sul Nera MC 17 281 13661
Cascia PG 18 3217 16878
Montemonaco AP 18 604 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km NW of Chieti (51815 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
99 Km S of Ancona (100861 inhabitants)
99 Km E of Viterbo (67173 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 1.5 2019-07-17
21:50:22		 42.754 13.2282 11 2019-11-13
14:30:57		 Bollettino Sismico Italiano INGV 71303281
Reviewed
Rev100 		ML 1.5 2019-07-17
21:50:22		 42.7542 13.2277 11 2019-07-17
21:57:29		 Sala Sismica INGV-Roma 70663481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-17 21:50:22 ± 0.05
Latitude 42.7540 ± 0.0027
Longitude 13.2282 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71303281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 463
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.55398
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 70663481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-17 21:57:29

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 71303281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-27 13:37:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHZ. 2019-07-17T21:50:34.02 0.6 undecidable manual P 152 61.494 50 0.74 38
IV.MF5.EHZ. 2019-07-17T21:50:33.90 0.3 undecidable manual S 36 32.0457 50 0.45 67
IV.FDMO.HHZ. 2019-07-17T21:50:33.56 0.3 undecidable manual S 340 33.3444 50 -0.24 70
IV.RM33.EHZ. 2019-07-17T21:50:32.13 0.3 undecidable manual S 182 27.2505 50 -0.03 74
IV.CAMP.HHZ. 2019-07-17T21:50:32.07 0.3 undecidable manual S 149 28.3494 50 -0.4 68
IV.GAVE.EHZ. 2019-07-17T21:50:32.54 0.3 undecidable manual S 256 28.0497 50 0.15 72
IV.FIAM.HHZ. 2019-07-17T21:50:31.88 0.3 undecidable manual P 190 54.7008 50 -0.35 66
IV.LNSS.HHZ. 2019-07-17T21:50:31.37 0.3 undecidable manual S 222 22.755 50 0.41 69
IV.SAP2.EHE. 2019-07-17T21:50:30.24 0.3 undecidable manual P 20 40.4262 50 0.2 70
IV.OFFI.HHZ. 2019-07-17T21:50:30.91 0.1 undecidable manual P 61 42.3243 50 0.58 84
IV.GIGS.HHZ. 2019-07-17T21:50:30.24 0.1 undecidable manual P 140 43.623 50 -0.29 90
IV.ARRO.EHZ. 2019-07-17T21:50:30.40 0.1 undecidable manual P 243 42.4242 50 0.05 95
IV.MMO1.EHZ. 2019-07-17T21:50:29.26 0.3 undecidable manual S 26 17.9709 120 -0.3 71
IV.MC2.EHZ. 2019-07-17T21:50:29.47 0.3 undecidable manual S 350 17.7711 121 -0.01 75
IV.CESI.HHE. 2019-07-17T21:50:29.48 0.3 undecidable manual P 317 38.3283 50 -0.23 69
IV.GAVE.EHZ. 2019-07-17T21:50:28.06 0.1 undecidable manual P 256 28.0497 50 -0.07 97
IV.SMA1.EHZ. 2019-07-17T21:50:28.74 0.3 undecidable manual S 147 16.2726 123 -0.3 71
IV.FEMA.HNE. 2019-07-17T21:50:28.17 0.3 undecidable manual P 328 27.2505 50 0.16 72
IV.MF5.EHZ. 2019-07-17T21:50:28.78 0.3 undecidable manual P 36 32.0457 50 0.03 73
IV.NRCA.HNZ. 2019-07-17T21:50:28.03 0.3 undecidable manual S 314 12.7761 129 -0.04 75
IV.FDMO.HHZ. 2019-07-17T21:50:28.65 0.1 undecidable manual P 340 33.3444 50 -0.3 92
IV.T1299.EHE. 2019-07-17T21:50:28.76 0.3 undecidable manual S 162 13.9749 127 0.36 70
IV.LNSS.HHZ. 2019-07-17T21:50:27.24 0.1 undecidable manual P 222 22.755 50 -0.07 98
IV.RM33.EHZ. 2019-07-17T21:50:27.87 0.1 undecidable manual P 182 27.2505 50 -0.13 96
IV.CAMP.HHZ. 2019-07-17T21:50:27.90 0.1 undecidable manual P 149 28.3494 50 -0.28 93
IV.MC2.EHZ. 2019-07-17T21:50:26.48 0.1 undecidable manual P 350 17.7711 121 0.02 100
IV.T1299.EHE. 2019-07-17T21:50:26.15 0.3 undecidable manual P 162 13.9749 127 0.32 71
IV.SMA1.EHZ. 2019-07-17T21:50:26.29 0.1 undecidable manual P 147 16.2726 123 0.09 99
IV.MMO1.EHZ. 2019-07-17T21:50:26.38 0.1 undecidable manual P 26 17.9709 120 -0.12 98
IV.NRCA.HNZ. 2019-07-17T21:50:25.74 0.1 undecidable manual P 314 12.7761 129 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.1 0.001229743 0.1152 AML other m 2019-07-17T21:50:28.23
IV.NRCA.HNN. ML:2.0 0.00108248885 0.128 AML other m 2019-07-17T21:50:28.23
IV.MTRA.EHE. ML:1.9 0.00084008485 0.1408 AML other m 2019-07-17T21:50:28.51
IV.NRCA.HNE. ML:2.0 0.0010855553 0.1152 AML other m 2019-07-17T21:50:28.66
IV.NRCA.HHE. ML:2.0 0.001181466 0.128 AML other m 2019-07-17T21:50:28.66
IV.MTRA.EHN. ML:2.0 0.00089916915 0.2048 AML other m 2019-07-17T21:50:28.78
IV.SMA1.EHN. ML:1.6 0.00031167434999999997 0.1152 AML other m 2019-07-17T21:50:29.20
IV.SMA1.EHE. ML:1.6 0.0003626648 0.0896 AML other m 2019-07-17T21:50:29.34
IV.LNSS.HHN. ML:1.6 0.00027454164999999995 0.1664 AML other m 2019-07-17T21:50:31.57
IV.LNSS.HNN. ML:1.5 0.00022585255 0.1664 AML other m 2019-07-17T21:50:31.57
IV.LNSS.HNE. ML:1.6 0.00024277545 0.3328 AML other m 2019-07-17T21:50:31.60
IV.LNSS.HHE. ML:1.6 0.00023274865 0.1408 AML other m 2019-07-17T21:50:31.74
IV.CAMP.HHN. ML:1.0 0.000055647274999999997 0.32 AML other m 2019-07-17T21:50:32.41
IV.CAMP.HHE. ML:1.2 0.00008254338499999999 0.2432 AML other m 2019-07-17T21:50:32.45
IV.RM33.EHN. ML:1.7 0.00029745224999999995 0.1792 AML other m 2019-07-17T21:50:32.45
IV.RM33.HNN. ML:1.8 0.00031328725 0.1792 AML other m 2019-07-17T21:50:32.36
IV.RM33.HNE. ML:1.8 0.00030636264999999997 0.1792 AML other m 2019-07-17T21:50:32.84
IV.RM33.EHE. ML:1.8 0.0002980813 0.1792 AML other m 2019-07-17T21:50:32.84
IV.GAVE.EHN. ML:1.5 0.00017757045 0.2944 AML other m 2019-07-17T21:50:32.79
IV.GAVE.HNE. ML:1.6 0.00022353295 0.1536 AML other m 2019-07-17T21:50:33.65
IV.GAVE.EHE. ML:1.6 0.00021110735 0.1408 AML other m 2019-07-17T21:50:33.66
IV.FDMO.HHN. ML:1.5 0.00013633515 0.1536 AML other m 2019-07-17T21:50:33.77
IV.FDMO.HHE. ML:1.4 0.00011203489999999999 0.192 AML other m 2019-07-17T21:50:33.69
IV.MF5.EHE. ML:1.4 0.00011492441500000001 0.3328 AML other m 2019-07-17T21:50:34.46
IV.GIGS.HHE. ML:0.7 0.00001500062 0.1536 AML other m 2019-07-17T21:50:37.24
IV.ARRO.EHE. ML:1.2 0.00004994861 0.2176 AML other m 2019-07-17T21:50:37.72
IV.GIGS.HHN. ML:0.7 0.0000151001565 0.0768 AML other m 2019-07-17T21:50:38.14
IV.OFFI.HHN. ML:1.7 0.00016089789999999997 0.6144 AML other m 2019-07-17T21:50:38.39
IV.OFFI.HHE. ML:1.6 0.00012920645 0.384 AML other m 2019-07-17T21:50:38.73
IV.MF5.EHN. ML:1.4 0.00012249807 0.3968 AML other m 2019-07-17T21:50:38.73
IV.ARRO.EHN. ML:1.2 0.000047675595 0.192 AML other m 2019-07-17T21:50:39.19
IV.FIAM.HHN. ML:0.9 0.00002163284 1.8208 AML other m 2019-07-17T21:50:40.99
IV.MOMA.HHN. ML:1.4 0.000058074215 0.2304 AML other m 2019-07-17T21:50:40.60
IV.FIAM.HHE. ML:0.9 0.00001923367 1.8208 AML other m 2019-07-17T21:50:40.04
IV.MOMA.HHE. ML:1.4 0.000063505385 0.1792 AML other m 2019-07-17T21:50:41.84
IV.MNTT.EHE. ML:1.5 0.000085222455 0.256 AML other m 2019-07-17T21:50:41.82
IV.FAGN.HHE. ML:1.4 0.000050509765 0.2816 AML other m 2019-07-17T21:50:44.40
IV.MNTT.EHN. ML:1.5 0.00009005593 0.2688 AML other m 2019-07-17T21:50:44.84
IV.FAGN.HHN. ML:1.3 0.00003917292 1.616 AML other m 2019-07-17T21:50:44.15
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