Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 20-08-2019 and time 07:15:02 (Italy) in region 2 km NW Fagnano Alto (AQ)

A magnitude ML 1.0 earthquake occured in region: 2 km NW Fagnano Alto (AQ), on

  • 20-08-2019 05:15:02 (UTC)
  • 20-08-2019 07:15:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.2660, 13.5640 at 9 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
Fagnano Alto AQ 2 418 418
Villa Sant'Angelo AQ 2 424 842
San Demetrio ne' Vestini AQ 3 1854 2696
Prata d'Ansidonia AQ 4 496 3192
Sant'Eusanio Forconese AQ 4 394 3586
Fontecchio AQ 5 369 3955
Poggio Picenze AQ 7 1136 5091
Rocca di Cambio AQ 7 533 5624
Fossa AQ 7 721 6345
Rocca di Mezzo AQ 7 1526 7871
Barisciano AQ 7 1828 9699
Ocre AQ 8 1167 10866
San Pio delle Camere AQ 8 661 11527
Tione degli Abruzzi AQ 9 310 11837
Caporciano AQ 9 230 12067
Carapelle Calvisio AQ 11 87 12154
Santo Stefano di Sessanio AQ 11 111 12265
Castelvecchio Calvisio AQ 12 153 12418
Calascio AQ 13 137 12555
Navelli AQ 14 554 13109
Ovindoli AQ 15 1227 14336
Secinaro AQ 16 359 14695
Acciano AQ 16 327 15022
L'Aquila AQ 17 69753 84775
Capestrano AQ 17 884 85659
Castel del Monte AQ 17 413 86072
Ofena AQ 18 506 86578
Collepietro AQ 19 237 86815
Lucoli AQ 19 1011 87826
Gagliano Aterno AQ 19 254 88080
Molina Aterno AQ 19 386 88466
Villa Santa Lucia degli Abruzzi AQ 19 123 88589
San Benedetto in Perillis AQ 19 113 88702
Celano AQ 20 11017 99719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SE of L'Aquila (69753 inhabitants)
45 Km S of Teramo (54892 inhabitants)
51 Km W of Chieti (51815 inhabitants)
56 Km SW of Montesilvano (53738 inhabitants)
58 Km W of Pescara (121014 inhabitants)
72 Km E of Tivoli (56533 inhabitants)
75 Km E of Guidonia Montecelio (88673 inhabitants)
82 Km E of Terni (111501 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
98 Km E of Roma (2864731 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 1.0 2019-08-20
05:15:02		 42.2658 13.5645 9 2019-11-13
14:30:59		 Bollettino Sismico Italiano INGV 71759201
Reviewed
Rev100 		ML 1.0 2019-08-20
05:15:03		 42.2588 13.5773 7 2019-08-20
05:19:39		 Sala Sismica INGV-Roma 71641071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 05:15:02 ± 0.06
Latitude 42.2658 ± 0.0036
Longitude 13.5645 ± 0.0061
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71759201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 577
Semi-minor axis of confidence ellipse (meter) 315
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55848
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 71641071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 05:19:39

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 71759201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-18 15:26:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.ORP.HGZ. 2019-08-20T05:15:55.28 3.0 undecidable manual Sg -0.28 0
IV.PE3.EHZ. 2019-08-20T05:15:30.15 3.0 positive manual Pn -2.42 0
IV.SGG.HHZ. 2019-08-20T05:15:24.57 3.0 undecidable manual P 0.32 0
IV.TERO.HHN. 2019-08-20T05:15:15.78 0.3 undecidable manual S 5 39.7269 50 -0.25 67
IV.INTR.HHZ. 2019-08-20T05:15:15.82 0.6 undecidable manual S 135 39.7269 50 -0.21 45
IV.CAMP.HHE. 2019-08-20T05:15:14.29 0.6 undecidable manual S 337 32.5452 50 0.17 46
IV.POFI.HNE. 2019-08-20T05:15:13.87 0.6 undecidable manual P 169 61.9935 50 0.11 44
IV.VVLD.HHZ. 2019-08-20T05:15:11.15 0.6 undecidable manual P 174 44.2224 50 0.14 46
IV.SMA1.EHZ. 2019-08-20T05:15:11.45 0.6 undecidable manual P 335 44.622 50 0.38 43
IV.TERO.HHN. 2019-08-20T05:15:10.05 0.3 undecidable manual P 5 39.7269 50 -0.27 67
IV.INTR.HHZ. 2019-08-20T05:15:10.11 0.3 undecidable manual P 135 39.7269 50 -0.21 68
IV.RM33.HNE. 2019-08-20T05:15:10.42 0.6 undecidable manual P 313 39.3273 50 0.15 46
IV.CAMP.HHE. 2019-08-20T05:15:09.44 0.6 undecidable manual P 337 32.5452 50 0.22 46
IV.T0110.HHZ. 2019-08-20T05:15:09.58 0.6 undecidable manual S 103 17.871 117 0.11 48
IV.FIAM.HHZ. 2019-08-20T05:15:09.78 1.0 undecidable manual P 271 36.741 50 -0.08 23
IV.PTQR.HHZ. 2019-08-20T05:15:08.87 0.6 undecidable manual P 207 30.2475 107 0.03 48
IV.VCEL.EHZ. 2019-08-20T05:15:08.56 0.6 undecidable manual P 58 26.751 109 0.38 45
IV.GIGS.HHZ. 2019-08-20T05:15:07.04 0.6 undecidable manual P 2 20.7681 114 -0.03 49
MN.AQU.HNN. 2019-08-20T05:15:06.00 0.6 undecidable manual P 307 16.3725 119 -0.27 47
IV.T0110.HHZ. 2019-08-20T05:15:06.65 0.3 undecidable manual P 103 17.871 117 0.12 72
IV.FAGN.HHZ. 2019-08-20T05:15:05.40 0.6 undecidable manual S 90 1.5984 170 -0.31 47
IV.FAGN.HHZ. 2019-08-20T05:15:04.41 0.1 positive manual P 90 1.5984 170 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VCEL.EHE. ML:1.3 0.00011 0.3 AML other m 2019-08-20T05:15:14.28
IV.VCEL.EHN. ML:1.2 0.0000974 1.16 AML other m 2019-08-20T05:15:14.32
IV.INTR.HHN. ML:1.1 0.000038127389999999996 0.3808 AML other m 2019-08-20T05:15:17.87
IV.FIAM.HHN. ML:0.6 0.00001575 0.78 AML other m 2019-08-20T05:15:19.58
IV.SMA1.EHE. ML:1.0 0.000028999999999999997 0.32 AML other m 2019-08-20T05:15:20.23
IV.FIAM.HHE. ML:0.6 0.000014449999999999999 1.58 AML other m 2019-08-20T05:15:21.95
IV.INTR.HHE. ML:0.8 0.000018271685 0.4416 AML other m 2019-08-20T05:15:22.81
IV.SMA1.EHN. ML:1.0 0.0000282 0.44 AML other m 2019-08-20T05:15:23.62
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