Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 10-12-2019 and time 20:20:03 (UTC) in region 8 km W Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 8 km W Accumoli (RI), on

  • 10-12-2019 20:20:03 (UTC)
  • 10-12-2019 21:20:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7000, 13.1520 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Cittareale RI 9 482 1149
Norcia PG 11 4957 6106
Cascia PG 12 3217 9323
Amatrice RI 14 2657 11980
Arquata del Tronto AP 14 1178 13158
Monteleone di Spoleto PG 17 599 13757
Poggiodomo PG 18 117 13874
Posta RI 20 694 14568

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of L'Aquila (69753 inhabitants)
44 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
91 Km W of Pescara (121014 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km W of Chieti (51815 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 1.4 2019-12-10
20:20:03		 42.6998 13.1522 11 2019-12-10
20:31:13		 Sala Sismica INGV-Roma 74523811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-10 20:20:03 ± 0.05
Latitude 42.6998 ± 0.0036
Longitude 13.1522 ± 0.0049
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 74523811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 294
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49822
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 74523811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-10 20:31:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIMA.HNZ. 2019-12-10T20:20:28.39 3.0 undecidable manual S -0.47 0
IV.MMO1.EHZ. 2019-12-10T20:20:13.19 0.6 undecidable manual S 33 26.2515 50 -0.19 63
IV.CAMP.HHZ. 2019-12-10T20:20:13.69 0.6 undecidable manual S 131 27.75 50 -0.08 64
IV.ASSB.HHE. 2019-12-10T20:20:13.98 0.3 undecidable manual P 314 55.3002 50 0.2 89
IV.MC2.EHZ. 2019-12-10T20:20:12.87 0.6 undecidable manual S 7 23.6541 50 0.2 63
IV.MOMA.HNN. 2019-12-10T20:20:12.94 0.6 undecidable manual P 284 48.8178 50 0.16 61
IV.CESX.HHE. 2019-12-10T20:20:12.47 0.3 undecidable manual P 258 47.2194 50 -0.07 93
IV.CSP1.EHZ. 2019-12-10T20:20:11.83 0.3 undecidable manual P 6 43.7229 50 -0.16 92
IV.MTRA.EHZ. 2019-12-10T20:20:11.36 0.6 undecidable manual S 72 20.868 117 -0.5 59
IV.CESI.HNN. 2019-12-10T20:20:11.14 0.3 undecidable manual P 329 39.3273 50 -0.18 92
IV.RM33.EHZ. 2019-12-10T20:20:11.85 0.6 undecidable manual S 166 21.7671 116 -0.29 62
IV.MF5.EHZ. 2019-12-10T20:20:11.94 0.3 undecidable manual P 38 40.5261 50 0.43 87
IT.MTCL.HGE. 2019-12-10T20:20:11.16 0.3 undecidable manual P 339 34.9428 50 0.52 86
IV.TERO.HHZ. 2019-12-10T20:20:10.98 0.3 undecidable manual P 103 37.8288 50 -0.11 94
IV.ARRO.EHE. 2019-12-10T20:20:10.50 0.3 undecidable manual P 247 34.2435 50 -0.04 96
IV.SMA1.EHZ. 2019-12-10T20:20:10.86 0.6 undecidable manual S 117 16.7721 122 0.23 63
IV.FDMO.HHZ. 2019-12-10T20:20:10.84 0.3 undecidable manual P 352 37.7289 50 -0.22 92
IV.T1299.HNZ. 2019-12-10T20:20:09.53 0.3 undecidable manual S 124 12.876 129 0.02 100
IV.NRCA.HNZ. 2019-12-10T20:20:09.84 0.6 undecidable manual S 348 15.1737 125 -0.3 63
IV.CAMP.HHZ. 2019-12-10T20:20:09.36 0.3 undecidable manual P 131 27.75 50 -0.18 94
IV.MMO1.EHZ. 2019-12-10T20:20:09.13 0.3 undecidable manual P 33 26.2515 50 -0.18 95
IV.LNSS.HHZ. 2019-12-10T20:20:09.80 0.6 undecidable manual S 220 14.0748 127 -0.05 66
IV.MTRA.EHZ. 2019-12-10T20:20:08.74 0.3 undecidable manual P 72 20.868 117 0.3 93
IV.RM33.EHZ. 2019-12-10T20:20:08.43 0.3 undecidable manual P 166 21.7671 116 -0.17 95
IV.MC2.EHZ. 2019-12-10T20:20:08.85 0.3 undecidable manual P 7 23.6541 50 -0.05 98
IV.SMA1.EHZ. 2019-12-10T20:20:08.03 0.3 undecidable manual P 117 16.7721 122 0.31 94
IV.LNSS.HHZ. 2019-12-10T20:20:07.37 0.3 undecidable manual P 220 14.0748 127 0.09 98
IV.T1299.HNZ. 2019-12-10T20:20:07.36 0.3 undecidable manual P 124 12.876 129 0.28 95
IV.NRCA.HNZ. 2019-12-10T20:20:07.35 0.3 undecidable manual P 348 15.1737 125 -0.09 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.8 0.0005727471500000001 0.0768 AML other m 2019-12-10T20:20:10.04
IV.NRCA.HHN. ML:1.5 0.00030716905 0.1408 AML other m 2019-12-10T20:20:11.32
IV.NRCA.HNE. ML:1.8 0.0005552096 0.0768 AML other m 2019-12-10T20:20:10.04
IV.NRCA.HNN. ML:1.6 0.00033467334999999997 0.1536 AML other m 2019-12-10T20:20:11.33
IV.LNSS.HHE. ML:1.6 0.00044218345 0.1024 AML other m 2019-12-10T20:20:10.24
IV.LNSS.HHN. ML:1.7 0.0004701517 0.2432 AML other m 2019-12-10T20:20:10.09
IV.LNSS.HNE. ML:1.6 0.00040746505 0.1152 AML other m 2019-12-10T20:20:10.23
IV.LNSS.HNN. ML:1.6 0.0004285417 0.2176 AML other m 2019-12-10T20:20:10.09
IV.SMA1.EHE. ML:1.7 0.0003910343 0.1792 AML other m 2019-12-10T20:20:11.35
IV.SMA1.EHN. ML:1.4 0.0002314313 0.192 AML other m 2019-12-10T20:20:11.40
IV.RM33.HNE. ML:1.1 0.00009162227 0.128 AML other m 2019-12-10T20:20:12.63
IV.RM33.HNN. ML:1.1 0.000089894815 0.1024 AML other m 2019-12-10T20:20:12.25
IV.RM33.EHE. ML:1.1 0.00008504311 0.1536 AML other m 2019-12-10T20:20:12.56
IV.RM33.EHN. ML:1.1 0.000078241885 0.0768 AML other m 2019-12-10T20:20:13.07
IV.MTRA.HNE. ML:1.2 0.00010715058999999999 0.128 AML other m 2019-12-10T20:20:12.60
IV.MTRA.HNN. ML:1.2 0.000116718655 0.1408 AML other m 2019-12-10T20:20:12.44
IV.MTRA.EHE. ML:1.2 0.00011345730999999999 0.1408 AML other m 2019-12-10T20:20:12.36
IV.MTRA.EHN. ML:1.2 0.0001178028 0.1024 AML other m 2019-12-10T20:20:12.08
IV.FDMO.HHE. ML:1.0 0.00003429759 0.2176 AML other m 2019-12-10T20:20:16.99
IV.FDMO.HHN. ML:1.1 0.000044980355 0.256 AML other m 2019-12-10T20:20:16.84
IV.TERO.HHE. ML:1.2 0.000066038815 0.064 AML other m 2019-12-10T20:20:16.83
IV.TERO.HHN. ML:1.2 0.00006491957378499999 0.0768 AML other m 2019-12-10T20:20:16.93
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