Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 01-11-2019 and time 20:06:52 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 0.9 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 01-11-2019 19:06:52 (UTC)
  • 01-11-2019 20:06:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7360, 13.1750 at 11 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 8 667 667
Norcia PG 9 4957 5624
Arquata del Tronto AP 11 1178 6802
Cittareale RI 13 482 7284
Cascia PG 13 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 18 523 13681
Castelsantangelo sul Nera MC 18 281 13962
Preci PG 19 724 14686
Acquasanta Terme AP 20 2916 17602
Poggiodomo PG 20 117 17719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
47 Km E of Terni (111501 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
92 Km W of Chieti (51815 inhabitants)
94 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
Reviewed
Rev100 		ML 0.9 2019-11-01
19:06:52		 42.7362 13.1753 11 2019-11-01
19:33:31		 Sala Sismica INGV-Roma 73576921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-01 19:06:52 ± 0.05
Latitude 42.7362 ± 0.0027
Longitude 13.1753 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73576921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 333
Semi-minor axis of confidence ellipse (meter) 174
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
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) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 73576921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-01 19:33:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2019-11-01T19:07:04.92 0.6 undecidable manual S 110 37.1295 50 -0.3 45
IV.FDMO.HHZ. 2019-11-01T19:07:04.47 0.6 undecidable manual S 348 34.0437 50 0.06 49
IV.RM33.HNE. 2019-11-01T19:07:02.04 0.6 undecidable manual S 173 25.3524 50 -0.05 49
IV.LNSS.HHZ. 2019-11-01T19:07:00.03 0.3 undecidable manual S 217 18.4704 120 -0.17 73
IV.MC2.EHZ. 2019-11-01T19:07:00.71 0.6 undecidable manual S 3 19.4694 50 0.2 48
IV.FDMO.HHZ. 2019-11-01T19:06:59.44 0.3 undecidable manual P 348 34.0437 50 -0.06 72
IV.TERO.HHZ. 2019-11-01T19:06:59.92 0.3 undecidable manual P 110 37.1295 50 -0.05 72
IV.SMA1.EHZ. 2019-11-01T19:06:59.99 0.6 undecidable manual S 132 17.5713 122 0.06 49
IV.MTRA.HNN. 2019-11-01T19:06:59.93 0.3 undecidable manual S 83 18.1707 121 -0.19 73
IV.RM33.HNE. 2019-11-01T19:06:58.34 0.1 undecidable manual P 173 25.3524 50 0.18 96
IV.NRCA.HHZ. 2019-11-01T19:06:58.20 0.3 undecidable manual S 335 11.877 132 -0.16 74
IV.SMA1.EHZ. 2019-11-01T19:06:57.31 0.3 undecidable manual P 132 17.5713 122 0.4 69
IV.MTRA.HNN. 2019-11-01T19:06:57.03 0.1 undecidable manual P 83 18.1707 121 0.01 100
IV.LNSS.HHZ. 2019-11-01T19:06:57.03 0.1 undecidable manual P 217 18.4704 120 -0.04 100
IV.MC2.EHZ. 2019-11-01T19:06:57.27 0.3 undecidable manual P 3 19.4694 50 0.03 75
IV.NRCA.HHZ. 2019-11-01T19:06:56.07 0.1 undecidable manual P 335 11.877 132 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 0.00007425 0.08 AML other m 2019-11-01T19:06:58.39
IV.NRCA.HHN. ML:0.7 0.00005295 0.08 AML other m 2019-11-01T19:06:59.20
IV.LNSS.HHE. ML:1.0 0.0000848 0.62 AML other m 2019-11-01T19:07:00.29
IV.LNSS.HHN. ML:1.1 0.000104 0.7 AML other m 2019-11-01T19:07:00.33
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