Earthquake with magnitude of ML 0.7 on date 18-12-2019 and time 19:25:37 (Italy) in region 6 km NW Accumoli (RI)

A magnitude ML 0.7 earthquake occured in region: 6 km NW Accumoli (RI), on

  • 18-12-2019 18:25:37 (UTC)
  • 18-12-2019 19:25:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7420, 13.2150 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.

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 6 667 667
Arquata del Tronto AP 8 1178 1845
Norcia PG 11 4957 6802
Amatrice RI 14 2657 9459
Cittareale RI 14 482 9941
Montegallo AP 15 523 10464
Acquasanta Terme AP 16 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 18 281 16878
Montemonaco AP 20 604 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
51 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km W of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
98 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 0.7 2019-12-18
18:25:37
42.7423 13.2147 11 2019-12-18
18:31:49
Sala Sismica INGV-Roma 74770261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-18 18:25:37 ± 0.05
Latitude 42.7423 ± 0.0027
Longitude 13.2147 ± 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 74770261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 74770261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-18 18:31:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IT.FIE.HGZ. 2019-12-18T18:26:30.93 3.0 undecidable manual Sn 0.53 0
IV.FIR.HHZ. 2019-12-18T18:26:29.76 3.0 undecidable manual Sn -0.74 0
IV.NARO.HHZ. 2019-12-18T18:26:10.44 3.0 undecidable manual S -0.32 0
IV.RCAV.EHZ. 2019-12-18T18:26:04.73 3.0 undecidable manual S -5.73 0
IV.RMP.HHZ. 2019-12-18T18:25:58.55 3.0 negative manual P 1.06 0
IV.TERO.HHZ. 2019-12-18T18:25:48.75 0.3 undecidable manual S 113 34.4433 50 -0.24 69
IV.GAVE.HNZ. 2019-12-18T18:25:47.04 0.3 undecidable manual S 258 26.751 50 0.1 72
IV.RM33.EHZ. 2019-12-18T18:25:46.52 0.3 undecidable manual S 180 25.8519 50 -0.19 71
IV.LNSS.HHZ. 2019-12-18T18:25:45.28 0.3 undecidable manual S 223 21.0678 117 -0.09 73
IV.MMO1.EHZ. 2019-12-18T18:25:45.01 0.6 undecidable manual S 28 19.6692 118 0.06 49
IV.MC2.EHZ. 2019-12-18T18:25:44.94 0.6 undecidable manual S 354 18.87 119 0.23 48
IV.TERO.HHZ. 2019-12-18T18:25:44.21 0.3 undecidable manual P 113 34.4433 50 0.19 70
IV.MTRA.EHZ. 2019-12-18T18:25:43.31 0.1 undecidable manual S 84 14.874 125 -0.23 96
IV.T1299.EHE. 2019-12-18T18:25:43.20 0.3 undecidable manual S 155 13.1757 128 0.14 74
IV.NRCA.HHZ. 2019-12-18T18:25:42.71 0.1 undecidable manual S 321 12.9759 129 -0.3 95
IV.GAVE.HNZ. 2019-12-18T18:25:42.87 0.1 undecidable manual P 258 26.751 50 0.04 98
IV.RM33.EHZ. 2019-12-18T18:25:42.72 0.3 undecidable manual P 180 25.8519 50 0.01 74
IV.MC2.EHZ. 2019-12-18T18:25:41.70 0.3 undecidable manual P 354 18.87 119 0.16 72
IV.LNSS.HHZ. 2019-12-18T18:25:41.83 0.1 undecidable manual P 223 21.0678 117 -0.1 98
IV.SMA1.EHZ. 2019-12-18T18:25:41.17 0.3 undecidable manual P 142 15.873 124 0.15 73
IV.MMO1.EHZ. 2019-12-18T18:25:41.74 0.1 undecidable manual P 28 19.6692 118 0.06 98
IV.T1299.EHE. 2019-12-18T18:25:40.81 0.1 undecidable manual P 155 13.1757 128 0.22 96
IV.NRCA.HHZ. 2019-12-18T18:25:40.58 1.0 negative manual P 321 12.9759 129 0.01 25
IV.MTRA.EHZ. 2019-12-18T18:25:40.84 0.1 undecidable manual P 84 14.874 125 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.9 0.0000728124 0.0896 AML other m 2019-12-18T18:25:43.41
IV.NRCA.HHN. ML:0.7 0.000047930005 0.0768 AML other m 2019-12-18T18:25:43.99
IV.NRCA.HNE. ML:1.0 0.00010906463 0.3712 AML other m 2019-12-18T18:25:43.02
IV.MTRA.EHE. ML:0.6 0.000034794350000000003 0.192 AML other m 2019-12-18T18:25:43.92
IV.MTRA.EHN. ML:0.7 0.000045096395 0.2304 AML other m 2019-12-18T18:25:43.34
IV.MTRA.HNE. ML:0.7 0.00004504665500000001 0.2816 AML other m 2019-12-18T18:25:43.50
IV.LNSS.HHE. ML:0.9 0.00005687015500000001 0.1152 AML other m 2019-12-18T18:25:45.85
IV.LNSS.HHN. ML:0.9 0.000047912480000000004 0.1536 AML other m 2019-12-18T18:25:45.49
IV.RM33.EHE. ML:0.6 0.000021678885000000002 0.128 AML other m 2019-12-18T18:25:47.01
IV.RM33.EHN. ML:0.6 0.000019907115 0.1408 AML other m 2019-12-18T18:25:46.75
IV.TERO.HHE. ML:0.6 0.000012836255 0.5376 AML other m 2019-12-18T18:25:49.10
IV.TERO.HHN. ML:0.4 0.000011767252499999998 0.0896 AML other m 2019-12-18T18:25:49.24
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download