Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 17-02-2019 and time 07:42:58 (Italy) in region 8 km W Arquata del Tronto (AP)

A magnitude ML 1.0 earthquake occured in region: 8 km W Arquata del Tronto (AP), on

  • 17-02-2019 06:42:58 (UTC)
  • 17-02-2019 07:42:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8030, 13.2020 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 9 1178 1178
Norcia PG 9 4957 6135
Castelsantangelo sul Nera MC 11 281 6416
Montegallo AP 12 523 6939
Accumoli RI 13 667 7606
Montemonaco AP 15 604 8210
Preci PG 16 724 8934
Ussita MC 17 444 9378
Visso MC 17 1107 10485
Acquasanta Terme AP 17 2916 13401
Cascia PG 18 3217 16618
Montefortino FM 19 1178 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
44 Km W of Teramo (54892 inhabitants)
53 Km NE of Terni (111501 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
94 Km NW of Chieti (51815 inhabitants)
94 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km NE of Tivoli (56533 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 1.0 2019-02-17
06:42:58		 42.8032 13.2017 11 2019-08-22
08:25:11		 Bollettino Sismico Italiano INGV 70712441
Reviewed
Rev100 		ML 1.0 2019-02-17
06:42:58		 42.8103 13.2 12 2019-02-17
06:50:01		 Sala Sismica INGV-Roma 65619921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 06:42:58 ± 0.05
Latitude 42.8032 ± 0.0027
Longitude 13.2017 ± 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 70712441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 356
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 35
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34624
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 13
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 70712441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-19 12:58:52

ML:1.0

Field Value
Value 1.0
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 65619921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 06:50:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GENL.EHZ. 2019-02-17T06:44:41.33 3.0 undecidable manual Sg 12.27 0
IV.MSSA.HHZ. 2019-02-17T06:44:14.55 3.0 undecidable manual Sn -5.05 0
IV.EUCT.HNZ. 2019-02-17T06:44:00.46 3.0 negative manual Pg 7.15 0
IV.PII.HHZ. 2019-02-17T06:43:56.36 3.0 undecidable manual Sg -0.66 0
IV.MAGA.HHZ. 2019-02-17T06:43:53.81 3.0 undecidable manual Pg 3.95 0
IV.GATE.HHZ. 2019-02-17T06:43:41.81 3.0 undecidable manual Sn -7.73 0
IV.TERO.HHZ. 2019-02-17T06:43:11.23 0.6 undecidable manual S 121 38.4282 50 -0.09 48
IV.RM33.EHZ. 2019-02-17T06:43:09.99 0.6 undecidable manual S 178 32.6451 50 0.21 47
IV.CESI.HHZ. 2019-02-17T06:43:09.82 0.6 undecidable manual S 313 32.9448 50 -0.03 49
IV.MF5.EHZ. 2019-02-17T06:43:09.80 0.6 undecidable manual S 46 29.3484 50 0.91 38
IV.FDMO.HHZ. 2019-02-17T06:43:08.04 0.6 undecidable manual S 340 27.4503 50 -0.36 46
IV.GAVE.EHZ. 2019-02-17T06:43:08.45 0.6 undecidable manual S 244 27.9498 50 -0.06 49
IV.LNSS.HHZ. 2019-02-17T06:43:08.11 0.3 undecidable manual S 211 25.8519 50 0.16 72
IV.T1299.EHZ. 2019-02-17T06:43:06.47 0.3 undecidable manual S 161 19.869 50 0.11 74
IV.SMA1.EHZ. 2019-02-17T06:43:06.57 0.6 undecidable manual S 150 22.0668 50 -0.37 46
IV.MTRA.EHZ. 2019-02-17T06:43:05.23 0.6 undecidable manual S 108 16.6722 123 -0.21 49
IV.RM33.EHZ. 2019-02-17T06:43:05.06 0.1 undecidable manual P 178 32.6451 50 0.03 98
IV.TERO.HHZ. 2019-02-17T06:43:05.81 0.1 undecidable manual P 121 38.4282 50 -0.11 95
IV.MF5.EHZ. 2019-02-17T06:43:04.83 0.3 undecidable manual P 46 29.3484 50 0.31 70
IV.MC2.EHZ. 2019-02-17T06:43:04.32 0.3 undecidable manual S 355 12.0768 132 0.17 74
IV.GAVE.EHZ. 2019-02-17T06:43:04.29 0.3 undecidable manual P 244 27.9498 50 -0.01 74
IV.MMO1.EHZ. 2019-02-17T06:43:04.66 0.3 undecidable manual S 44 14.7741 126 -0.22 73
IV.CESI.HHZ. 2019-02-17T06:43:04.79 0.3 undecidable manual P 313 32.9448 50 -0.28 70
IV.LNSS.HHZ. 2019-02-17T06:43:03.92 0.3 undecidable manual P 211 25.8519 50 -0.05 74
IV.NRCA.HHZ. 2019-02-17T06:43:03.18 0.3 undecidable manual S 295 7.881 144 0 77
IV.FDMO.HHZ. 2019-02-17T06:43:03.97 0.1 undecidable manual P 340 27.4503 50 -0.26 94
IV.T1299.EHZ. 2019-02-17T06:43:03.22 0.3 undecidable manual P 161 19.869 50 0.16 73
IV.SMA1.EHZ. 2019-02-17T06:43:03.34 0.1 undecidable manual P 150 22.0668 50 -0.05 99
IV.MMO1.EHZ. 2019-02-17T06:43:02.12 0.1 undecidable manual P 44 14.7741 126 -0.08 100
IV.MTRA.EHZ. 2019-02-17T06:43:02.44 0.3 undecidable manual P 108 16.6722 123 -0.08 75
IV.NRCA.HHZ. 2019-02-17T06:43:01.38 0.1 negative manual P 295 7.881 144 0.17 100
IV.MC2.EHZ. 2019-02-17T06:43:01.97 0.1 undecidable manual P 355 12.0768 132 0.19 98
IV.SRES.HHZ. 2019-02-17T06:42:46.93 3.0 negative manual P -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.0005035 0.96 AML other m 2019-02-17T06:43:03.32
IV.NRCA.HNE. ML:1.5 0.000446 0.94 AML other m 2019-02-17T06:43:03.33
IV.NRCA.HHN. ML:1.4 0.0003685 0.18 AML other m 2019-02-17T06:43:03.36
IV.NRCA.HNN. ML:1.4 0.00036899999999999997 0.72 AML other m 2019-02-17T06:43:03.37
IV.MTRA.EHE. ML:0.5 0.00002715 1.04 AML other m 2019-02-17T06:43:06.69
IV.MTRA.EHN. ML:0.5 0.00002325 1.04 AML other m 2019-02-17T06:43:07.15
IV.FDMO.HHN. ML:0.9 0.000043700000000000005 0.16 AML other m 2019-02-17T06:43:08.24
IV.FDMO.HHE. ML:0.7 0.0000257 0.62 AML other m 2019-02-17T06:43:08.16
IV.GAVE.EHN. ML:0.9 0.000041599999999999995 0.98 AML other m 2019-02-17T06:43:09.38
IV.GAVE.EHE. ML:0.9 0.000044449999999999996 0.2 AML other m 2019-02-17T06:43:09.58
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