Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 13-11-2019 and time 21:29:00 (UTC) in region 4 km NW Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 4 km NW Accumoli (RI), on

  • 13-11-2019 21:29:00 (UTC)
  • 13-11-2019 22:29:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7220, 13.2180 at 10 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 4 667 667
Arquata del Tronto AP 9 1178 1845
Amatrice RI 12 2657 4502
Cittareale RI 13 482 4984
Norcia PG 13 4957 9941
Montegallo AP 16 523 10464
Acquasanta Terme AP 17 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
91 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 1.2 2019-11-13
21:29:00		 42.7225 13.2178 10 2020-02-28
16:42:18		 Bollettino Sismico Italiano INGV 75356951
Reviewed
Rev100 		ML 1.8 2019-11-13
21:29:01		 42.7227 13.2198 8 2019-11-13
21:33:34		 Sala Sismica INGV-Roma 73818381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-13 21:29:00 ± 0.07
Latitude 42.7225 ± 0.0036
Longitude 13.2178 ± 0.0061
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75356951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 580
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 68
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) 140
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.43797
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 75356951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-14 17:02:02

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 73818381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-13 21:33:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.HNE. 2019-11-13T21:29:16.35 0.6 undecidable manual S 335 47.8188 50 0.12 46
IV.CESI.HHE. 2019-11-13T21:29:14.10 0.3 undecidable manual S 321 40.4262 50 -0.16 70
IV.MF5.EHZ. 2019-11-13T21:29:13.60 0.6 undecidable manual S 34 35.4423 50 0.67 41
IV.GIGS.HHZ. 2019-11-13T21:29:13.98 0.6 undecidable manual S 136 41.625 50 -0.62 41
IV.FDMO.HHZ. 2019-11-13T21:29:12.90 0.6 undecidable manual S 343 36.4413 50 -0.3 45
IV.TERO.HHZ. 2019-11-13T21:29:12.13 0.6 undecidable manual S 109 33.3444 50 -0.26 46
IV.MML1.HNE. 2019-11-13T21:29:10.23 0.3 undecidable manual P 335 47.8188 50 0.51 64
IV.MNTT.EHZ. 2019-11-13T21:29:10.57 1.0 undecidable manual P 39 48.618 50 0.73 19
IV.RM33.EHZ. 2019-11-13T21:29:09.60 0.3 undecidable manual S 181 23.6541 113 -0.14 72
IV.OFFI.HHZ. 2019-11-13T21:29:09.93 0.3 undecidable manual P 58 44.8218 50 0.68 60
IV.MC2.EHZ. 2019-11-13T21:29:09.00 0.6 undecidable manual S 354 21.0678 116 0.08 49
IV.MMO1.EHZ. 2019-11-13T21:29:08.70 0.1 undecidable manual S 24 21.5673 115 -0.35 92
IV.CSP1.EHZ. 2019-11-13T21:29:08.40 1.0 undecidable manual P 359 41.0256 50 -0.27 23
IV.GUMA.HNN. 2019-11-13T21:29:08.37 0.6 undecidable manual P 14 38.9277 50 0.02 48
IV.GIGS.HHZ. 2019-11-13T21:29:08.71 0.3 undecidable manual P 136 41.625 50 -0.05 71
IV.MF5.EHZ. 2019-11-13T21:29:08.03 0.3 undecidable manual P 34 35.4423 50 0.23 69
IV.CESI.HHE. 2019-11-13T21:29:08.42 0.3 undecidable manual P 321 40.4262 50 -0.15 70
IV.TERO.HHZ. 2019-11-13T21:29:07.01 0.3 undecidable manual P 109 33.3444 50 -0.49 66
IV.FDMO.HHZ. 2019-11-13T21:29:07.74 0.6 undecidable manual P 343 36.4413 50 -0.22 46
IV.SMA1.EHZ. 2019-11-13T21:29:06.80 0.3 undecidable manual S 137 13.9749 126 0.01 75
IV.NRCA.HHZ. 2019-11-13T21:29:06.90 0.3 undecidable manual S 326 14.9739 124 -0.16 73
IV.T1299.HNN. 2019-11-13T21:29:06.40 0.6 undecidable manual S 152 11.0778 132 0.39 47
IV.MTRA.EHZ. 2019-11-13T21:29:06.90 0.6 undecidable manual S 75 15.0738 124 -0.19 48
IV.MMO1.EHZ. 2019-11-13T21:29:05.41 0.1 positive manual P 24 21.5673 115 -0.16 96
IV.RM33.EHZ. 2019-11-13T21:29:05.90 0.1 undecidable manual P 181 23.6541 113 -0.06 98
IV.MC2.EHZ. 2019-11-13T21:29:05.47 0.6 undecidable manual P 354 21.0678 116 -0.02 50
IV.T1299.HNN. 2019-11-13T21:29:04.21 0.3 undecidable manual P 152 11.0778 132 0.4 70
IV.NRCA.HHZ. 2019-11-13T21:29:04.50 0.1 negative manual P 326 14.9739 124 0.08 99
IV.SMA1.EHZ. 2019-11-13T21:29:04.39 0.3 undecidable manual P 137 13.9749 126 0.13 74
IV.MTRA.EHZ. 2019-11-13T21:29:04.46 0.1 positive manual P 75 15.0738 124 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.8 0.0006390401500000001 0.0768 AML other m 2019-11-13T21:29:07.02
IV.NRCA.HNN. ML:1.8 0.0005919352499999999 0.0896 AML other m 2019-11-13T21:29:07.03
IV.NRCA.HHN. ML:1.8 0.00068557635 0.0896 AML other m 2019-11-13T21:29:07.03
IV.NRCA.HNE. ML:1.9 0.0007295 0.18 AML other m 2019-11-13T21:29:07.02
IV.SMA1.EHE. ML:0.9 0.000084065445 0.1792 AML other m 2019-11-13T21:29:07.07
IV.MTRA.EHE. ML:0.9 0.000082358295 0.1408 AML other m 2019-11-13T21:29:07.38
IV.SMA1.EHN. ML:0.8 0.0000595258735 0.1664 AML other m 2019-11-13T21:29:07.50
IV.RM33.EHN. ML:1.0 0.0000619694 0.1664 AML other m 2019-11-13T21:29:09.86
IV.RM33.EHE. ML:0.9 0.000047955639999999995 0.1536 AML other m 2019-11-13T21:29:11.21
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