Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 13-07-2019 and time 13:18:41 (Italy) in region 3 km SW Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 3 km SW Accumoli (RI), on

  • 13-07-2019 11:18:41 (UTC)
  • 13-07-2019 13:18:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6770, 13.2300 at 16 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
Accumoli RI 3 667 667
Amatrice RI 7 2657 3324
Cittareale RI 9 482 3806
Arquata del Tronto AP 12 1178 4984
Montereale AQ 17 2581 7565
Norcia PG 17 4957 12522
Campotosto AQ 18 542 13064
Acquasanta Terme AP 18 2916 15980
Capitignano AQ 18 665 16645
Cascia PG 18 3217 19862
Borbona RI 20 617 20479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
97 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 1.4 2019-07-13
11:18:41		 42.6773 13.2305 16 2019-11-13
14:30:57		 Bollettino Sismico Italiano INGV 71242121
Reviewed
Rev100 		ML 1.5 2019-07-13
11:18:41		 42.6773 13.2305 16 2019-07-13
11:26:48		 Sala Sismica INGV-Roma 70528261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-13 11:18:41 ± 0.13
Latitude 42.6773 ± 0.0063
Longitude 13.2305 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 71242121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 633
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.08993
Epicentral distance of station farthest from the epicenter (degree) 0.35523
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 71242121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-08-07 09:14:34

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 70528261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-13 11:26:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2019-07-13T11:18:55.16 0.6 undecidable manual S 254 39.4272 101 0.73 41
IV.TERO.HHZ. 2019-07-13T11:18:52.31 0.6 undecidable manual S 101 31.0467 106 0.06 49
IV.GAVE.EHZ. 2019-07-13T11:18:51.16 0.6 undecidable manual S 274 27.4503 108 -0.17 48
IV.NRCA.HHZ. 2019-07-13T11:18:49.02 0.6 undecidable manual S 331 19.7691 119 -0.42 47
IV.LNSS.HHZ. 2019-07-13T11:18:49.20 0.6 undecidable manual S 242 17.5713 123 0.26 48
IV.ARRO.EHZ. 2019-07-13T11:18:48.72 0.1 undecidable manual P 254 39.4272 101 -0.17 94
IV.MTRA.EHZ. 2019-07-13T11:18:48.45 0.6 undecidable manual S 57 16.1727 126 -0.17 49
IV.RM33.EHZ. 2019-07-13T11:18:48.81 0.6 undecidable manual S 184 18.7701 120 -0.39 46
IV.TERO.HHZ. 2019-07-13T11:18:47.78 0.1 undecidable manual P 101 31.0467 106 0.16 96
IV.SMA1.EHZ. 2019-07-13T11:18:47.19 0.6 undecidable manual S 121 9.9789 142 -0.24 48
IV.GAVE.EHZ. 2019-07-13T11:18:47.03 0.1 undecidable manual P 274 27.4503 108 -0.06 98
IV.NRCA.HHZ. 2019-07-13T11:18:46.07 0.1 undecidable manual P 331 19.7691 119 0.07 99
IV.MTRA.EHZ. 2019-07-13T11:18:45.73 0.1 undecidable manual P 57 16.1727 126 0.2 98
IV.RM33.EHZ. 2019-07-13T11:18:45.85 0.1 undecidable manual P 184 18.7701 120 -0.01 100
IV.SMA1.EHZ. 2019-07-13T11:18:45.02 0.1 undecidable manual P 121 9.9789 142 0.18 100
IV.LNSS.HHZ. 2019-07-13T11:18:45.59 0.1 undecidable manual P 242 17.5713 123 -0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNN. ML:1.3 0.00013333534999999998 0.448 AML other m 2019-07-13T11:18:53.96
IV.LNSS.HNE. ML:1.4 0.00015263125 0.16 AML other m 2019-07-13T11:18:49.34
IV.LNSS.HHN. ML:1.2 0.0001036676 0.1408 AML other m 2019-07-13T11:18:49.95
IV.LNSS.HHE. ML:1.3 0.00012464312499999998 0.1408 AML other m 2019-07-13T11:18:49.41
IV.MTRA.HNE. ML:1.5 0.00023039989999999998 0.1792 AML other m 2019-07-13T11:18:49.56
IV.MTRA.HNN. ML:1.6 0.00028118665 0.1344 AML other m 2019-07-13T11:18:48.66
IV.MTRA.EHE. ML:1.5 0.00022068185000000002 0.1792 AML other m 2019-07-13T11:18:49.56
IV.MTRA.EHN. ML:1.6 0.00028491455 0.1408 AML other m 2019-07-13T11:18:48.66
IV.RM33.EHN. ML:1.4 0.00016551595 0.1408 AML other m 2019-07-13T11:18:49.04
IV.RM33.HNN. ML:1.7 0.0003037139 0.6976 AML other m 2019-07-13T11:18:52.44
IV.RM33.HNE. ML:1.7 0.00034949140000000003 0.6912 AML other m 2019-07-13T11:18:52.34
IV.RM33.EHE. ML:1.3 0.000123649 0.1408 AML other m 2019-07-13T11:18:49.59
IV.GAVE.EHN. ML:1.3 0.00009961669000000001 0.16 AML other m 2019-07-13T11:18:52.49
IV.GAVE.HNN. ML:1.5 0.00014391785500000002 0.6144 AML other m 2019-07-13T11:18:52.48
IV.GAVE.EHE. ML:1.3 0.000092508685 0.1408 AML other m 2019-07-13T11:18:52.12
IV.GAVE.HNE. ML:1.4 0.000127303755 0.5312 AML other m 2019-07-13T11:18:54.87
IV.TERO.HNN. ML:1.2 0.0000628566 0.6592 AML other m 2019-07-13T11:18:49.27
IV.TERO.HNE. ML:1.4 0.00012133947 0.4864 AML other m 2019-07-13T11:18:52.98
IV.TERO.HHN. ML:1.2 0.00006168213999999999 0.0832 AML other m 2019-07-13T11:18:53.24
IV.TERO.HHE. ML:1.1 0.000053579135 0.1408 AML other m 2019-07-13T11:18:53.35
IV.ARRO.EHE. ML:0.9 0.000023657335 0.1792 AML other m 2019-07-13T11:18:54.59
IV.ARRO.EHN. ML:1.0 0.000027750560000000002 0.1984 AML other m 2019-07-13T11:18:55.62
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
Waveforms Seismic signals in miniseed + resp format not available