Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 16-12-2019 and time 22:16:38 (Italy) in region 5 km SW Arquata del Tronto (AP)

A magnitude ML 1.4 earthquake occured in region: 5 km SW Arquata del Tronto (AP), on

  • 16-12-2019 21:16:38 (UTC)
  • 16-12-2019 22:16:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7450, 13.2460 at 9 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
Arquata del Tronto AP 5 1178 1178
Accumoli RI 6 667 1845
Montegallo AP 13 523 2368
Amatrice RI 13 2657 5025
Norcia PG 14 4957 9982
Acquasanta Terme AP 14 2916 12898
Cittareale RI 16 482 13380
Castelsantangelo sul Nera MC 18 281 13661
Montemonaco AP 19 604 14265
Cascia PG 19 3217 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
46 Km N of L'Aquila (69753 inhabitants)
50 Km E of Foligno (57155 inhabitants)
53 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
87 Km NW of Chieti (51815 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
100 Km S of Ancona (100861 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 2019-12-16
21:16:38		 42.7453 13.2457 9 2019-12-16
21:25:17		 Sala Sismica INGV-Roma 74719941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-16 21:16:38 ± 0.07
Latitude 42.7453 ± 0.0036
Longitude 13.2457 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74719941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 442
Semi-minor axis of confidence ellipse (meter) 360
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.11152
Epicentral distance of station farthest from the epicenter (degree) 0.59265
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 74719941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-16 21:25:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2019-12-16T21:16:51.53 0.3 undecidable manual S 12 35.9418 50 0.69 61
IV.CESI.HHZ. 2019-12-16T21:16:51.76 0.3 undecidable manual S 316 39.9267 50 -0.16 70
IV.CSP1.EHZ. 2019-12-16T21:16:51.65 0.6 undecidable manual S 355 38.5281 50 0.1 47
IV.EL6.EHZ. 2019-12-16T21:16:50.14 0.1 undecidable manual P 350 65.7897 50 -0.02 92
IV.FDMO.HHZ. 2019-12-16T21:16:50.13 0.3 undecidable manual S 338 34.743 50 -0.4 67
IV.MF5.EHZ. 2019-12-16T21:16:50.54 0.3 undecidable manual S 33 32.0457 50 0.74 60
IV.TERO.HHZ. 2019-12-16T21:16:49.21 0.3 undecidable manual S 115 32.2455 50 -0.64 63
IV.RM33.EHZ. 2019-12-16T21:16:48.25 0.3 undecidable manual S 186 26.3514 109 0.28 70
IV.OFFI.HHZ. 2019-12-16T21:16:47.07 0.6 negative manual P 59 41.5251 50 0.66 41
IV.LNSS.HHZ. 2019-12-16T21:16:47.21 0.3 undecidable manual S 227 23.0547 111 0.32 70
IV.MNTT.EHZ. 2019-12-16T21:16:47.73 0.6 positive manual P 39 45.2214 50 0.75 39
IV.MMO1.EHZ. 2019-12-16T21:16:45.40 0.3 undecidable manual S 21 18.2706 116 0.01 75
IV.CSP1.EHZ. 2019-12-16T21:16:45.56 1.0 undecidable manual P 355 38.5281 50 -0.4 22
IV.MC2.EHZ. 2019-12-16T21:16:45.65 0.3 undecidable manual S 346 18.9699 115 0.04 74
IV.GUMA.HHZ. 2019-12-16T21:16:45.59 0.1 positive manual P 12 35.9418 50 0.04 96
IV.CESI.HHZ. 2019-12-16T21:16:45.95 0.1 undecidable manual P 316 39.9267 50 -0.22 92
IV.MF5.EHZ. 2019-12-16T21:16:44.96 0.6 positive manual P 33 32.0457 50 0.01 49
IV.TERO.HHZ. 2019-12-16T21:16:44.46 0.1 undecidable manual P 115 32.2455 50 -0.52 88
IV.FDMO.HHZ. 2019-12-16T21:16:44.96 1.0 negative manual P 338 34.743 50 -0.41 22
IV.MTRA.EHZ. 2019-12-16T21:16:43.44 0.3 undecidable manual S 84 12.3765 126 -0.18 73
IV.LNSS.HHZ. 2019-12-16T21:16:43.40 0.1 positive manual P 227 23.0547 111 0.13 97
IV.NRCA.HHZ. 2019-12-16T21:16:43.98 0.3 undecidable manual S 312 14.4744 122 -0.25 72
IV.RM33.EHZ. 2019-12-16T21:16:43.91 0.1 undecidable manual P 186 26.3514 109 0.01 99
IV.MMO1.EHZ. 2019-12-16T21:16:42.23 0.1 positive manual P 21 18.2706 116 -0.18 97
IV.MC2.EHZ. 2019-12-16T21:16:42.50 0.3 positive manual P 346 18.9699 115 -0.03 75
IV.MTRA.EHZ. 2019-12-16T21:16:41.38 0.6 negative manual P 84 12.3765 126 0.01 51
IV.NRCA.HHZ. 2019-12-16T21:16:41.69 0.1 positive manual P 312 14.4744 122 -0.05 100
IV.SMA1.EHZ. 2019-12-16T21:16:41.94 0.3 positive manual P 150 14.6742 121 0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.3 0.00021820710000000003 0.2176 AML other m 2019-12-16T21:16:45.72
IV.MTRA.EHN. ML:1.3 0.0002471223 0.2176 AML other m 2019-12-16T21:16:44.85
IV.MTRA.HNE. ML:1.3 0.0002403755 0.1792 AML other m 2019-12-16T21:16:45.31
IV.MTRA.HNN. ML:1.4 0.0002825 0.2432 AML other m 2019-12-16T21:16:44.85
IV.NRCA.HHE. ML:1.6 0.00039134135 0.128 AML other m 2019-12-16T21:16:44.98
IV.NRCA.HHN. ML:1.5 0.00032920689999999995 0.128 AML other m 2019-12-16T21:16:44.64
IV.NRCA.HNE. ML:1.5 0.00034911305 0.128 AML other m 2019-12-16T21:16:45.04
IV.NRCA.HNN. ML:1.4 0.0002921558 0.0896 AML other m 2019-12-16T21:16:44.70
IV.SMA1.EHE. ML:1.1 0.000114966 0.2176 AML other m 2019-12-16T21:16:47.40
IV.SMA1.EHN. ML:1.2 0.00014928305 0.4608 AML other m 2019-12-16T21:16:49.42
IV.LNSS.HNE. ML:1.6 0.0002735416 0.2816 AML other m 2019-12-16T21:16:47.29
IV.LNSS.HNN. ML:1.6 0.0002592696 0.192 AML other m 2019-12-16T21:16:47.72
IV.LNSS.HHE. ML:1.6 0.00029541645 0.2816 AML other m 2019-12-16T21:16:47.44
IV.LNSS.HHN. ML:1.6 0.00027356955 0.2048 AML other m 2019-12-16T21:16:47.72
IV.RM33.HNE. ML:1.4 0.00012446516 0.2944 AML other m 2019-12-16T21:16:50.73
IV.RM33.EHE. ML:1.2 0.00008669402 0.2304 AML other m 2019-12-16T21:16:49.89
IV.RM33.EHN. ML:1.2 0.00009392279 0.1664 AML other m 2019-12-16T21:16:49.26
IV.TERO.HHE. ML:1.3 0.000096322225 0.128 AML other m 2019-12-16T21:16:49.53
IV.TERO.HHN. ML:1.4 0.00011567786999999999 0.0896 AML other m 2019-12-16T21:16:49.47
IV.FDMO.HHE. ML:1.1 0.00005088328 0.1536 AML other m 2019-12-16T21:16:52.19
IV.FDMO.HHN. ML:1.0 0.000045981135 0.32 AML other m 2019-12-16T21:16:50.77
IV.CSP1.EHE. ML:1.2 0.00005252973 0.2688 AML other m 2019-12-16T21:16:52.77
IV.CSP1.EHN. ML:1.0 0.000041146379999999995 0.2048 AML other m 2019-12-16T21:16:51.85
IV.GUMA.HNE. ML:2.0 0.0003647525 0.32 AML other m 2019-12-16T21:16:51.80
IV.GUMA.HHE. ML:2.1 0.0004608719 0.2944 AML other m 2019-12-16T21:16:51.80
IV.GUMA.HHN. ML:1.7 0.00021193984999999998 0.2944 AML other m 2019-12-16T21:16:52.39
IV.CESI.HNN. ML:1.6 0.000133997215 0.2048 AML other m 2019-12-16T21:16:52.17
IV.CESI.HHE. ML:1.3 0.000065069515 0.1792 AML other m 2019-12-16T21:16:52.53
IV.CESI.HHN. ML:1.5 0.000113522405 0.192 AML other m 2019-12-16T21:16:52.17
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