Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 08-12-2019 and time 19:39:22 (Italy) in region 3 km E Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km E Castelsantangelo sul Nera (MC), on

  • 08-12-2019 18:39:22 (UTC)
  • 08-12-2019 19:39:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8980, 13.1940 at 15 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
Castelsantangelo sul Nera MC 3 281 281
Ussita MC 7 444 725
Visso MC 9 1107 1832
Montemonaco AP 11 604 2436
Bolognola MC 11 142 2578
Preci PG 13 724 3302
Montegallo AP 13 523 3825
Montefortino FM 13 1178 5003
Norcia PG 14 4957 9960
Acquacanina MC 15 121 10081
Fiastra MC 16 559 10640
Amandola FM 16 3629 14269
Arquata del Tronto AP 16 1178 15447
Fiordimonte MC 18 202 15649
Sarnano MC 18 3264 18913
Monte Cavallo MC 19 145 19058
Comunanza AP 19 3166 22224

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
63 Km N of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
100 Km NW 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 1.1 2019-12-08
18:39:22		 42.8978 13.1945 15 2019-12-08
18:45:36		 Sala Sismica INGV-Roma 74439831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 18:39:22 ± 0.13
Latitude 42.8978 ± 0.0036
Longitude 13.1945 ± 0.0061
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74439831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 204
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20415
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 74439831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 18:45:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2019-12-08T18:40:13.44 3.0 undecidable manual Pg 12.34 0
IV.LRP.EHZ. 2019-12-08T18:40:06.09 3.0 undecidable manual Sn -1.41 0
IV.CERA.HHZ. 2019-12-08T18:39:45.44 3.0 undecidable manual Pn 1.58 0
IT.VNF1.HGZ. 2019-12-08T18:39:44.42 3.0 negative manual Pn -1.08 0
GU.GSCL.HHZ. 2019-12-08T18:39:41.72 3.0 undecidable manual Pg 2.01 0
IV.CSNT.HHZ. 2019-12-08T18:39:30.95 3.0 positive manual Pg -0.71 0
IV.CSP1.EHZ. 2019-12-08T18:39:30.64 0.3 undecidable manual S 2 21.5673 112 -0.06 73
IV.FDMO.HHZ. 2019-12-08T18:39:29.54 0.6 undecidable manual S 331 17.6712 119 -0.23 47
IV.MMO1.EHZ. 2019-12-08T18:39:28.20 0.3 undecidable manual S 89 10.7781 137 -0.1 74
IV.MC2.EHZ. 2019-12-08T18:39:27.34 0.1 undecidable manual S 343 1.5984 173 0.11 100
IV.NRCA.HHZ. 2019-12-08T18:39:27.93 0.3 undecidable manual S 222 9.6792 140 -0.18 73
IV.CSP1.EHZ. 2019-12-08T18:39:27.20 1.0 undecidable manual P 2 21.5673 112 0.06 24
IV.MTRA.HNN. 2019-12-08T18:39:27.20 0.6 undecidable manual P 134 22.6551 110 -0.11 48
IV.FDMO.HHZ. 2019-12-08T18:39:26.66 0.3 undecidable manual P 331 17.6712 119 0.05 73
IV.NRCA.HHZ. 2019-12-08T18:39:25.72 0.1 positive manual P 222 9.6792 140 0.08 99
IV.MMO1.EHZ. 2019-12-08T18:39:25.77 0.1 undecidable manual P 89 10.7781 137 0.02 100
IV.MC2.EHZ. 2019-12-08T18:39:25.35 0.6 undecidable manual P 343 1.5984 173 0.22 49
IV.BRSN.EHZ. 2019-12-08T18:39:24.69 3.0 positive manual P -1.52 0
IV.FRON.EHZ. 2019-12-08T18:39:18.07 3.0 undecidable manual P -0.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.0 0.00009978529999999999 0.064 AML other m 2019-12-08T18:39:28.11
IV.NRCA.HHN. ML:1.2 0.000141608385 0.064 AML other m 2019-12-08T18:39:28.14
IV.NRCA.HNE. ML:1.0 0.00010371668500000001 0.448 AML other m 2019-12-08T18:39:33.22
IV.NRCA.HNN. ML:1.2 0.00013944843000000001 0.2944 AML other m 2019-12-08T18:39:28.00
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