Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-08-2019 and time 04:02:39 (Italy) in region 5 km W Arquata del Tronto (AP)

A magnitude ML 1.5 earthquake occured in region: 5 km W Arquata del Tronto (AP), on

  • 17-08-2019 02:02:39 (UTC)
  • 17-08-2019 04:02:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7780, 13.2310 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 9 667 1845
Montegallo AP 11 523 2368
Norcia PG 11 4957 7325
Castelsantangelo sul Nera MC 15 281 7606
Acquasanta Terme AP 15 2916 10522
Montemonaco AP 16 604 11126
Amatrice RI 17 2657 13783
Cittareale RI 19 482 14265
Cascia PG 19 3217 17482
Preci PG 19 724 18206
Ussita MC 20 444 18650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
49 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
78 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
90 Km NW of Chieti (51815 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 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 2019-08-17
02:02:39		 42.7778 13.2308 11 2019-11-13
14:31:01		 Bollettino Sismico Italiano INGV 72101121
Reviewed
Rev100 		ML 1.5 2019-08-17
02:02:39		 42.7752 13.236 11 2019-08-17
02:06:39		 Sala Sismica INGV-Roma 71561031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-17 02:02:39 ± 0.05
Latitude 42.7778 ± 0.0027
Longitude 13.2308 ± 0.0049
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 72101121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 77
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 52
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58996
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 72101121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-04 06:31:45

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 71561031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-17 02:06:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2019-08-17T02:03:00.13 0.1 undecidable manual S 130 65.49 50 0.72 76
IV.FIAM.HHZ. 2019-08-17T02:02:57.40 0.3 undecidable manual S 189 57.2982 50 0.18 68
IV.CESX.HHE. 2019-08-17T02:02:56.92 0.3 undecidable manual S 251 55.7997 50 0.11 69
MN.AQU.HNN. 2019-08-17T02:02:55.09 0.3 undecidable manual S 163 49.1175 50 0.05 71
IV.MML1.HNE. 2019-08-17T02:02:53.43 0.1 undecidable manual S 331 42.7239 50 0.09 95
IV.GIGS.HHZ. 2019-08-17T02:02:53.65 0.1 undecidable manual S 142 45.621 50 -0.44 88
IV.ARVD.HHZ. 2019-08-17T02:02:53.88 3.0 negative manual P -0.26 0
IV.PF6.EHN. 2019-08-17T02:02:52.46 0.1 undecidable manual S 356 40.0266 50 -0.15 94
IV.SAP2.EHE. 2019-08-17T02:02:52.51 0.1 undecidable manual S 21 37.9287 50 0.46 88
IV.CSP1.EHZ. 2019-08-17T02:02:51.12 0.1 undecidable manual S 357 34.9428 50 -0.12 95
IV.VCEL.EHZ. 2019-08-17T02:02:51.55 0.1 undecidable manual P 130 65.49 50 0.6 80
IV.CESI.HHE. 2019-08-17T02:02:51.79 0.1 undecidable manual S 314 36.5412 50 0.1 95
IV.GUMA.HHZ. 2019-08-17T02:02:51.09 0.1 undecidable manual S 15 32.745 50 0.43 90
IV.RM33.EHZ. 2019-08-17T02:02:50.11 0.1 undecidable manual S 183 29.8479 50 0.22 94
IV.MF5.EHZ. 2019-08-17T02:02:50.27 0.1 undecidable manual S 39 29.8479 50 0.39 91
IV.TERO.HHZ. 2019-08-17T02:02:50.69 0.3 undecidable manual S 119 34.9428 50 -0.56 64
IV.FIAM.HHZ. 2019-08-17T02:02:49.42 0.3 undecidable manual P 189 57.2982 50 -0.27 67
IV.CESX.HHE. 2019-08-17T02:02:49.62 0.3 undecidable manual P 251 55.7997 50 0.17 68
IT.MTCL.HGZ. 2019-08-17T02:02:49.72 0.1 undecidable manual S 322 30.4473 50 -0.34 92
IV.CAMP.HHZ. 2019-08-17T02:02:49.76 0.1 undecidable manual S 152 30.5472 50 -0.32 92
IV.FDMO.HHZ. 2019-08-17T02:02:49.90 0.1 undecidable manual S 338 30.9468 50 -0.29 93
MN.AQU.HNN. 2019-08-17T02:02:48.66 0.3 undecidable manual P 163 49.1175 50 0.23 68
IV.LNSS.HHZ. 2019-08-17T02:02:48.82 0.1 undecidable manual S 219 24.8529 50 0.26 94
IV.MNTT.EHZ. 2019-08-17T02:02:48.11 0.1 undecidable manual P 43 43.2234 50 0.58 84
IV.FEMA.HNE. 2019-08-17T02:02:48.40 0.3 undecidable manual S 324 25.1526 50 -0.25 71
IV.OFFI.HHZ. 2019-08-17T02:02:47.66 0.1 undecidable manual P 65 40.9257 50 0.5 87
IV.MML1.HNE. 2019-08-17T02:02:47.22 0.1 undecidable manual P 331 42.7239 50 -0.23 92
IV.GIGS.HHZ. 2019-08-17T02:02:47.53 0.1 undecidable manual P 142 45.621 50 -0.35 89
IV.SMA1.EHZ. 2019-08-17T02:02:46.45 0.1 undecidable manual S 152 18.4704 120 -0.37 93
IV.T1299.HNN. 2019-08-17T02:02:46.65 0.1 undecidable manual S 165 16.4724 123 0.41 93
IV.PF6.EHN. 2019-08-17T02:02:46.61 0.1 undecidable manual P 356 40.0266 50 -0.42 89
IV.SAP2.EHE. 2019-08-17T02:02:46.86 0.1 undecidable manual P 21 37.9287 50 0.16 94
IV.MC2.EHZ. 2019-08-17T02:02:46.08 0.1 undecidable manual S 347 15.1737 125 0.2 97
IV.CESI.HHE. 2019-08-17T02:02:46.32 0.1 undecidable manual P 314 36.5412 50 -0.18 94
IV.CAMP.HHZ. 2019-08-17T02:02:45.26 0.1 positive manual P 152 30.5472 50 -0.31 93
IV.TERO.HHZ. 2019-08-17T02:02:45.88 0.1 undecidable manual P 119 34.9428 50 -0.37 91
IV.NRCA.HNZ. 2019-08-17T02:02:45.02 0.1 undecidable manual S 303 11.2776 134 0.18 98
IV.FDMO.HHZ. 2019-08-17T02:02:45.30 0.1 positive manual P 338 30.9468 50 -0.33 92
IV.GUMA.HHZ. 2019-08-17T02:02:45.89 0.1 positive manual P 15 32.745 50 -0.01 98
IV.MTRA.HNZ. 2019-08-17T02:02:45.21 0.1 undecidable manual S 100 13.6752 128 -0.25 96
IV.RM33.EHZ. 2019-08-17T02:02:45.36 0.1 positive manual P 183 29.8479 50 -0.1 97
IV.CSP1.EHZ. 2019-08-17T02:02:45.92 0.1 positive manual P 357 34.9428 50 -0.32 92
IV.MMO1.EHZ. 2019-08-17T02:02:45.77 0.1 undecidable manual S 30 15.5733 125 -0.22 97
IV.MF5.EHZ. 2019-08-17T02:02:45.54 0.1 undecidable manual P 39 29.8479 50 0.09 97
IT.MTCL.HGZ. 2019-08-17T02:02:45.30 0.1 undecidable manual P 322 30.4473 50 -0.26 94
IV.FEMA.HNE. 2019-08-17T02:02:44.88 0.3 undecidable manual P 324 25.1526 50 0.14 73
IV.LNSS.HHZ. 2019-08-17T02:02:44.84 0.1 negative manual P 219 24.8529 50 0.15 97
IV.MMO1.EHZ. 2019-08-17T02:02:43.08 0.1 positive manual P 30 15.5733 125 -0.12 99
IV.MC2.EHZ. 2019-08-17T02:02:43.24 0.1 undecidable manual P 347 15.1737 125 0.1 99
IV.SMA1.EHZ. 2019-08-17T02:02:43.62 0.1 positive manual P 152 18.4704 120 -0.07 99
IV.T1299.HNN. 2019-08-17T02:02:43.55 0.1 positive manual P 165 16.4724 123 0.19 97
IV.NRCA.HNZ. 2019-08-17T02:02:42.73 0.1 negative manual P 303 11.2776 134 0.19 98
IV.MTRA.HNZ. 2019-08-17T02:02:42.83 0.1 negative manual P 100 13.6752 128 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.7 0.0005830789 0.0784 AML other m 2019-08-17T02:02:45.10
IV.NRCA.HNN. ML:1.6 0.00052368285 0.0992 AML other m 2019-08-17T02:02:45.55
IV.NRCA.HHN. ML:1.7 0.0006169217 0.1008 AML other m 2019-08-17T02:02:45.50
IV.NRCA.HHE. ML:1.7 0.00060592725 0.0592 AML other m 2019-08-17T02:02:45.18
IV.MTRA.EHE. ML:1.7 0.0004852579 0.1408 AML other m 2019-08-17T02:02:45.59
IV.MTRA.EHN. ML:1.6 0.0004133879 0.3008 AML other m 2019-08-17T02:02:45.86
IV.MTRA.HNE. ML:1.7 0.0004937597 0.1504 AML other m 2019-08-17T02:02:45.59
IV.MTRA.HNN. ML:1.6 0.00043502885000000003 0.3008 AML other m 2019-08-17T02:02:45.85
IV.SMA1.EHE. ML:1.6 0.00027911205 0.2192 AML other m 2019-08-17T02:02:46.87
IV.SMA1.EHN. ML:1.4 0.0001754193 0.1408 AML other m 2019-08-17T02:02:47.34
IV.LNSS.HNE. ML:1.6 0.0002621023 0.1792 AML other m 2019-08-17T02:02:49.24
IV.LNSS.HHE. ML:1.7 0.0002830367 0.1808 AML other m 2019-08-17T02:02:49.23
IV.LNSS.HNN. ML:1.8 0.00039351925 0.24 AML other m 2019-08-17T02:02:49.28
IV.LNSS.HHN. ML:1.9 0.00045270660000000003 0.24 AML other m 2019-08-17T02:02:49.28
IV.CAMP.HHE. ML:1.3 0.00008355011500000001 0.3216 AML other m 2019-08-17T02:02:50.13
IV.CAMP.HHN. ML:1.0 0.00004455811 0.36 AML other m 2019-08-17T02:02:50.09
IV.FDMO.HHN. ML:1.4 0.00011924835 0.24 AML other m 2019-08-17T02:02:50.19
IV.FDMO.HHE. ML:1.2 0.00006959337000000001 0.12 AML other m 2019-08-17T02:02:50.32
IV.RM33.EHE. ML:1.1 0.000061107595 0.1408 AML other m 2019-08-17T02:02:50.63
IV.RM33.EHN. ML:1.1 0.000054595505 0.24 AML other m 2019-08-17T02:02:50.58
IV.MF5.EHN. ML:1.5 0.00016427144999999998 0.1808 AML other m 2019-08-17T02:02:50.57
IV.MF5.EHE. ML:1.5 0.00016463295 0.2784 AML other m 2019-08-17T02:02:50.68
IV.TERO.HHE. ML:1.4 0.00010841354 0.12 AML other m 2019-08-17T02:02:51.19
IV.TERO.HNN. ML:1.2 0.00006528590500000001 0.1504 AML other m 2019-08-17T02:02:50.97
IV.TERO.HHN. ML:1.4 0.000111076725 0.08 AML other m 2019-08-17T02:02:50.97
IV.GUMA.HHE. ML:1.9 0.0003183585 0.36 AML other m 2019-08-17T02:02:51.35
IV.GUMA.HHN. ML:1.7 0.00023230715 0.24 AML other m 2019-08-17T02:02:51.35
IV.GUMA.HNE. ML:1.8 0.00028499704999999996 0.3104 AML other m 2019-08-17T02:02:51.35
IV.CSP1.EHE. ML:1.1 0.000053636339999999996 0.1392 AML other m 2019-08-17T02:02:52.22
IV.GIGS.HHN. ML:0.7 0.000016696444999999998 0.08 AML other m 2019-08-17T02:02:54.72
IV.GIGS.HHE. ML:0.8 0.0000181890055 0.0592 AML other m 2019-08-17T02:02:54.49
IV.MNTT.EHE. ML:1.6 0.00012772995500000002 0.24 AML other m 2019-08-17T02:02:55.60
IV.MNTT.EHN. ML:1.6 0.00014177053000000002 0.1808 AML other m 2019-08-17T02:02:56.40
IV.VCEL.EHN. ML:1.3 0.000039217715 0.2992 AML other m 2019-08-17T02:03:03.26
IV.VCEL.EHE. ML:1.4 0.000043829010000000004 0.3408 AML other m 2019-08-17T02:03:02.22
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