Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-07-2019 and time 11:57:07 (UTC) in region 5 km SW Arquata del Tronto (AP)

A magnitude ML 1.2 earthquake occured in region: 5 km SW Arquata del Tronto (AP), on

  • 08-07-2019 11:57:07 (UTC)
  • 08-07-2019 13:57:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7420, 13.2620 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 5 1178 1178
Accumoli RI 5 667 1845
Acquasanta Terme AP 13 2916 4761
Amatrice RI 13 2657 7418
Montegallo AP 13 523 7941
Norcia PG 15 4957 12898
Cittareale RI 16 482 13380
Montemonaco AP 19 604 13984
Castelsantangelo sul Nera MC 19 281 14265
Valle Castellana TE 19 977 15242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
51 Km E of Foligno (57155 inhabitants)
54 Km E of Terni (111501 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
86 Km NW of Chieti (51815 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
100 Km S of Ancona (100861 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 1.2 2019-07-08
11:57:07		 42.7417 13.2617 11 2019-11-13
14:30:53		 Bollettino Sismico Italiano INGV 70410491
Reviewed
Rev100 		ML 1.5 2019-07-08
11:57:07		 42.7457 13.2632 12 2019-07-08
12:06:24		 Sala Sismica INGV-Roma 70370481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-08 11:57:07 ± 0.05
Latitude 42.7417 ± 0.0027
Longitude 13.2617 ± 0.0037
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 70410491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 323
Semi-minor axis of confidence ellipse (meter) 292
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 23
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
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) 0.51081
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 70370481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-08 12:06:24

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 70410491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-09 15:02:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2019-07-08T11:57:34.34 3.0 undecidable manual S -0.24 0
IV.ARVD.HHZ. 2019-07-08T11:57:32.87 3.0 undecidable manual S 0.16 0
IV.MOMA.HNZ. 2019-07-08T11:57:18.01 0.6 undecidable manual P 277 56.6988 90 0.13 45
IV.TERO.HHZ. 2019-07-08T11:57:18.10 0.3 undecidable manual S 115 30.8469 90 -0.31 68
IV.CAMP.HHZ. 2019-07-08T11:57:17.00 0.1 undecidable manual S 152 25.8519 90 -0.06 97
IV.LNSS.HHZ. 2019-07-08T11:57:16.70 0.6 undecidable manual S 230 23.754 90 0.19 48
IV.CESI.HHE. 2019-07-08T11:57:15.33 0.6 undecidable manual P 315 41.1255 90 -0.15 46
IV.MMO1.EHZ. 2019-07-08T11:57:14.90 0.1 undecidable manual S 17 18.2706 91 -0.16 96
IV.MF5.EHZ. 2019-07-08T11:57:14.48 0.1 undecidable manual P 30 31.746 90 0.46 89
IV.NRCA.HHZ. 2019-07-08T11:57:14.20 0.1 undecidable manual S 310 15.7731 91 -0.18 97
IV.ARRO.EHZ. 2019-07-08T11:57:14.22 3.0 positive manual P 44.3223 -1.74 0
IV.GAVE.EHZ. 2019-07-08T11:57:13.77 0.1 undecidable manual P 260 30.4473 90 -0.06 96
IV.CAMP.HHZ. 2019-07-08T11:57:13.22 0.1 undecidable manual P 152 25.8519 90 0.1 96
IV.RM33.EHZ. 2019-07-08T11:57:13.14 0.1 undecidable manual P 188 26.0517 90 -0.02 98
IV.TERO.HHZ. 2019-07-08T11:57:13.69 0.1 undecidable manual P 115 30.8469 90 -0.2 93
IV.MTRA.EHZ. 2019-07-08T11:57:13.20 0.1 undecidable manual S 81 11.0778 114 0.03 99
IV.FDMO.HHZ. 2019-07-08T11:57:12.36 3.0 undecidable manual P 35.6421 -2.27 0
IV.LNSS.HHZ. 2019-07-08T11:57:12.82 0.1 undecidable manual P 230 23.754 90 0.03 98
IV.MC2.EHZ. 2019-07-08T11:57:12.25 0.3 undecidable manual P 343 19.7691 91 0.07 74
IV.MTRA.EHZ. 2019-07-08T11:57:11.02 0.1 undecidable manual P 81 11.0778 114 0.15 97
IV.MMO1.EHZ. 2019-07-08T11:57:11.95 0.1 negative manual P 17 18.2706 91 -0.01 99
IV.NRCA.HHZ. 2019-07-08T11:57:11.55 0.1 undecidable manual P 310 15.7731 91 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.5 0.00033499999999999996 0.34 AML other m 2019-07-08T11:57:13.41
IV.MTRA.EHE. ML:1.7 0.000615 0.42 AML other m 2019-07-08T11:57:13.52
IV.NRCA.HHE. ML:1.7 0.00048049999999999997 0.16 AML other m 2019-07-08T11:57:14.27
IV.NRCA.HHN. ML:1.8 0.000554 0.1 AML other m 2019-07-08T11:57:14.89
IV.LNSS.HHN. ML:1.3 0.0001295 0.2 AML other m 2019-07-08T11:57:16.83
IV.LNSS.HHE. ML:1.2 0.00008649999999999999 0.56 AML other m 2019-07-08T11:57:17.23
IV.RM33.EHE. ML:1.3 0.00009815 1.32 AML other m 2019-07-08T11:57:18.10
IV.RM33.EHN. ML:1.0 0.00006204999999999999 1.2 AML other m 2019-07-08T11:57:18.85
IV.TERO.HHN. ML:1.2 0.00007135 1.56 AML other m 2019-07-08T11:57:19.07
IV.TERO.HHE. ML:1.1 0.0000606 0.56 AML other m 2019-07-08T11:57:19.59
IV.GAVE.EHE. ML:1.1 0.00006715 0.44 AML other m 2019-07-08T11:57:20.08
IV.GAVE.EHN. ML:1.2 0.00006884999999999999 0.3 AML other m 2019-07-08T11:57:20.02
IV.FDMO.HHN. ML:0.6 0.000016649999999999998 0.48 AML other m 2019-07-08T11:57:22.05
IV.FDMO.HHE. ML:0.7 0.000020749999999999996 0.18 AML other m 2019-07-08T11:57:22.21
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