Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 19-12-2019 and time 17:19:23 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.2 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 19-12-2019 16:19:23 (UTC)
  • 19-12-2019 17:19:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8420, 13.2170 at 13 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
Castelsantangelo sul Nera MC 8 281 281
Montegallo AP 10 523 804
Arquata del Tronto AP 10 1178 1982
Montemonaco AP 11 604 2586
Norcia PG 11 4957 7543
Ussita MC 13 444 7987
Visso MC 15 1107 9094
Preci PG 15 724 9818
Montefortino FM 15 1178 10996
Accumoli RI 16 667 11663
Bolognola MC 17 142 11805
Acquasanta Terme AP 18 2916 14721
Amandola FM 19 3629 18350

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
90 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 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
Bulletin
Rev1000 		ML 1.2 2019-12-19
16:19:23		 42.8417 13.2173 13 2020-02-28
16:42:26		 Bollettino Sismico Italiano INGV 76645511
Reviewed
Rev100 		ML 1.6 2019-12-19
16:19:23		 42.8458 13.2182 14 2019-12-19
16:23:46		 Sala Sismica INGV-Roma 74801031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-19 16:19:23 ± 0.09
Latitude 42.8417 ± 0.0036
Longitude 13.2173 ± 0.0061
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76645511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 478
Semi-minor axis of confidence ellipse (meter) 98
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.49463
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 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 76645511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-19 10:35:07

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 74801031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-19 16:23:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-12-19T16:19:41.47 0.3 undecidable manual S 350 54.9006 92 0.6 60
IV.GIGS.HHZ. 2019-12-19T16:19:39.85 0.3 undecidable manual S 146 51.9036 93 -0.23 68
IV.RM33.EHZ. 2019-12-19T16:19:36.56 0.3 undecidable manual S 180 36.9297 94 0.49 66
IV.TERO.HHZ. 2019-12-19T16:19:36.58 0.3 undecidable manual S 127 39.7269 94 -0.25 69
IV.LNSS.HHZ. 2019-12-19T16:19:35.20 0.3 undecidable manual S 209 30.1476 96 0.92 57
IV.CESI.HHZ. 2019-12-19T16:19:34.66 0.3 undecidable manual S 306 31.2465 96 0.1 72
IV.GUMA.HHZ. 2019-12-19T16:19:33.58 0.3 undecidable manual S 21 26.3514 98 0.32 69
IV.SMA1.EHZ. 2019-12-19T16:19:33.06 0.3 undecidable manual S 158 25.3524 98 0.06 74
IV.EL6.EHZ. 2019-12-19T16:19:33.32 0.3 undecidable manual P 350 54.9006 92 -0.31 67
IV.CSP1.EHZ. 2019-12-19T16:19:33.28 0.3 undecidable manual S 358 27.75 97 -0.37 69
IV.MF5.EHZ. 2019-12-19T16:19:33.54 0.3 undecidable manual S 50 25.5522 98 0.49 65
IV.FDMO.HHZ. 2019-12-19T16:19:32.23 0.3 undecidable manual S 334 24.0537 99 -0.43 68
IV.GIGS.HHZ. 2019-12-19T16:19:32.70 0.6 undecidable manual P 146 51.9036 93 -0.48 43
IT.MTCL.HGZ. 2019-12-19T16:19:32.42 0.3 undecidable manual S 314 24.4533 99 -0.35 69
IV.TERO.HHZ. 2019-12-19T16:19:31.22 0.3 undecidable manual P 127 39.7269 94 -0.08 72
IV.MNTT.EHZ. 2019-12-19T16:19:31.86 0.3 undecidable manual P 51 39.2274 94 0.63 61
IV.MTRA.EHZ. 2019-12-19T16:19:30.70 0.3 undecidable manual S 123 17.3715 108 -0.22 72
IV.RM33.EHZ. 2019-12-19T16:19:30.77 0.3 undecidable manual P 180 36.9297 94 -0.09 71
IV.MMO1.EHZ. 2019-12-19T16:19:29.18 0.3 undecidable manual S 54 10.9779 127 -0.22 73
IV.MF5.EHZ. 2019-12-19T16:19:29.19 0.3 undecidable manual P 50 25.5522 98 0.08 72
IV.MC2.EHZ. 2019-12-19T16:19:29.13 0.3 undecidable manual S 343 8.0808 139 0.29 73
IV.CESI.HHZ. 2019-12-19T16:19:29.84 0.3 undecidable manual P 306 31.2465 96 -0.15 71
IV.NRCA.HNZ. 2019-12-19T16:19:29.01 0.3 undecidable manual S 264 8.4804 137 0.11 76
IV.GUMA.HHZ. 2019-12-19T16:19:29.20 0.3 undecidable manual P 21 26.3514 98 -0.04 74
IV.LNSS.HHZ. 2019-12-19T16:19:29.83 0.3 undecidable manual P 209 30.1476 96 0 73
IV.CSP1.EHZ. 2019-12-19T16:19:29.13 0.3 undecidable manual P 358 27.75 97 -0.33 70
IV.FDMO.HHZ. 2019-12-19T16:19:28.60 0.3 undecidable manual P 334 24.0537 99 -0.29 70
IV.SMA1.EHZ. 2019-12-19T16:19:28.96 0.3 undecidable manual P 158 25.3524 98 -0.12 72
IT.MTCL.HGZ. 2019-12-19T16:19:28.72 0.3 undecidable manual P 314 24.4533 99 -0.24 71
IV.MTRA.EHZ. 2019-12-19T16:19:27.83 0.3 undecidable manual P 123 17.3715 108 -0.06 75
IV.MMO1.EHZ. 2019-12-19T16:19:26.91 0.3 undecidable manual P 54 10.9779 127 -0.1 75
IV.MC2.EHZ. 2019-12-19T16:19:26.86 0.3 undecidable manual P 343 8.0808 139 0.17 74
IV.NRCA.HNZ. 2019-12-19T16:19:26.87 0.1 negative manual P 264 8.4804 137 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.9 0.0008807115000000001 0.0768 AML other m 2019-12-19T16:19:29.20
IV.NRCA.HHE. ML:2.0 0.0010962825 0.1664 AML other m 2019-12-19T16:19:29.19
IV.MTRA.EHE. ML:1.2 0.00011623615 0.064 AML other m 2019-12-19T16:19:31.09
IV.MTRA.EHN. ML:1.2 0.00011519509 0.064 AML other m 2019-12-19T16:19:30.98
IV.MTRA.HNE. ML:1.2 0.00011451108 0.064 AML other m 2019-12-19T16:19:30.84
IV.MTRA.HNN. ML:1.2 0.00011508368500000001 0.064 AML other m 2019-12-19T16:19:30.98
IV.FDMO.HHE. ML:1.0 0.000053023475 0.2688 AML other m 2019-12-19T16:19:32.45
IV.FDMO.HHN. ML:1.2 0.00008727397500000001 0.1536 AML other m 2019-12-19T16:19:32.54
IV.SMA1.EHE. ML:1.1 0.000071064745 0.1024 AML other m 2019-12-19T16:19:33.64
IV.SMA1.EHN. ML:1.1 0.00006633218 0.1408 AML other m 2019-12-19T16:19:33.43
IV.CSP1.EHE. ML:1.1 0.000060767885000000004 0.2432 AML other m 2019-12-19T16:19:33.82
IV.CSP1.EHN. ML:1.2 0.00008725112500000001 0.2176 AML other m 2019-12-19T16:19:34.14
IV.LNSS.HHE. ML:1.0 0.000052365355 0.1024 AML other m 2019-12-19T16:19:35.48
IV.LNSS.HHN. ML:1.0 0.000046176135 0.1408 AML other m 2019-12-19T16:19:37.32
IV.CESI.HHN. ML:1.2 0.00006774111499999999 0.1792 AML other m 2019-12-19T16:19:35.16
IV.CESI.HHE. ML:1.2 0.00007538136500000001 0.1152 AML other m 2019-12-19T16:19:34.90
IV.RM33.EHN. ML:1.1 0.00005118988 0.2176 AML other m 2019-12-19T16:19:36.74
IV.RM33.HNN. ML:1.2 0.00005489576 0.1408 AML other m 2019-12-19T16:19:36.91
IV.RM33.EHE. ML:1.2 0.00006326202 0.1024 AML other m 2019-12-19T16:19:37.47
IV.RM33.HNE. ML:1.4 0.000091973215 0.1792 AML other m 2019-12-19T16:19:38.51
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