Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 16-12-2019 and time 18:37:48 (Italy) in region 4 km SE Accumoli (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km SE Accumoli (RI), on

  • 16-12-2019 17:37:48 (UTC)
  • 16-12-2019 18:37:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6690, 13.2830 at 8 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
Accumoli RI 4 667 667
Amatrice RI 4 2657 3324
Cittareale RI 12 482 3806
Arquata del Tronto AP 12 1178 4984
Campotosto AQ 14 542 5526
Acquasanta Terme AP 15 2916 8442
Montereale AQ 16 2581 11023
Capitignano AQ 17 665 11688
Valle Castellana TE 19 977 12665
Cortino TE 19 656 13321
Montegallo AP 20 523 13844

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
37 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
88 Km NE of Tivoli (56533 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 1.6 2019-12-16
17:37:48		 42.6687 13.2832 8 2020-02-28
16:42:15		 Bollettino Sismico Italiano INGV 74844881
Reviewed
Rev100 		ML 1.6 2019-12-16
17:37:48		 42.6638 13.2908 9 2019-12-16
17:44:55		 Sala Sismica INGV-Roma 74716621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-16 17:37:48 ± 0.04
Latitude 42.6687 ± 0.0027
Longitude 13.2832 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74844881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67359
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 39
Type of magnitude ML
Reference to an origin 74844881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-21 07:49:44

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 41
Type of magnitude ML
Reference to an origin 74716621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-16 17:44:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2019-12-16T17:38:21.17 3.0 undecidable manual S -2.2 0
IV.PTRJ.HNZ. 2019-12-16T17:38:17.19 3.0 undecidable manual P 0.48 0
IV.GATE.HHZ. 2019-12-16T17:38:17.21 3.0 undecidable manual Pn -0.51 0
IT.VNF1.HGZ. 2019-12-16T17:38:13.18 3.0 negative manual P 0.37 0
IV.TOLF.HHZ. 2019-12-16T17:38:11.36 3.0 undecidable manual P 1.3 0
IV.T0110.HHZ. 2019-12-16T17:38:08.16 0.6 undecidable manual S 140 63.2922 50 -0.18 44
IV.MOMA.HNZ. 2019-12-16T17:38:07.54 0.6 undecidable manual S 285 59.9955 50 0.08 46
IV.MML1.HNE. 2019-12-16T17:38:06.07 0.6 undecidable manual S 333 55.5 50 -0.18 45
IV.VCEL.EHZ. 2019-12-16T17:38:06.50 0.6 undecidable manual S 124 54.8007 50 0.43 43
IV.OFFI.HHZ. 2019-12-16T17:38:05.12 1.0 undecidable manual S 48 44.1225 50 1.9 10
IV.PF6.EHN. 2019-12-16T17:38:05.40 0.6 undecidable manual S 352 52.503 50 -0.08 46
IV.CESI.HHZ. 2019-12-16T17:38:04.28 0.6 undecidable manual S 321 48.4182 50 -0.08 47
IV.CSP1.EHZ. 2019-12-16T17:38:04.05 0.3 undecidable manual S 352 47.4192 50 -0.04 70
IV.GUMA.HHZ. 2019-12-16T17:38:03.62 0.6 undecidable manual S 6 43.9227 50 0.45 43
IT.MTCL.HGZ. 2019-12-16T17:38:02.69 0.3 undecidable manual S 327 42.8238 50 -0.19 69
IV.FDMO.HHZ. 2019-12-16T17:38:02.98 0.6 undecidable manual S 339 43.8228 50 -0.16 46
IV.MF5.EHN. 2019-12-16T17:38:02.20 0.3 undecidable manual S 22 38.2284 50 0.55 64
IV.EL6.EHZ. 2019-12-16T17:38:01.81 0.1 undecidable manual P 349 74.7696 50 0.2 86
IV.GIGS.HHZ. 2019-12-16T17:37:59.48 0.6 undecidable manual S 135 33.6441 103 -0.73 40
IV.MOMA.HNZ. 2019-12-16T17:37:59.03 0.6 undecidable manual P 285 59.9955 50 -0.31 43
IV.T0110.HHZ. 2019-12-16T17:37:59.57 0.1 undecidable manual P 140 63.2922 50 -0.27 87
IV.FAGN.HHZ. 2019-12-16T17:37:58.18 0.3 undecidable manual P 151 51.0156 50 0.23 67
IV.MML1.HNE. 2019-12-16T17:37:58.37 0.1 undecidable manual P 333 55.5 50 -0.27 88
IV.VCEL.EHZ. 2019-12-16T17:37:58.61 0.1 undecidable manual P 124 54.8007 50 0.08 92
IV.OFFI.HHZ. 2019-12-16T17:37:57.58 0.3 undecidable manual P 48 44.1225 50 0.69 60
IV.PF6.EHN. 2019-12-16T17:37:57.97 0.1 undecidable manual P 352 52.503 50 -0.22 90
IV.TERO.HHZ. 2019-12-16T17:37:57.54 0.3 undecidable manual S 101 26.6511 106 -0.33 69
IV.CSP1.EHZ. 2019-12-16T17:37:57.10 0.1 positive manual P 352 47.4192 50 -0.29 89
IV.MMO1.EHZ. 2019-12-16T17:37:57.28 0.6 undecidable manual S 8 25.8519 107 -0.31 46
IV.GUMA.HHZ. 2019-12-16T17:37:57.12 0.1 undecidable manual P 6 43.9227 50 0.26 90
IV.CESI.HHZ. 2019-12-16T17:37:57.24 0.1 undecidable manual P 321 48.4182 50 -0.31 89
IV.NRCA.HHZ. 2019-12-16T17:37:56.67 0.1 undecidable manual S 323 22.8549 109 0.05 98
IV.FDMO.HHZ. 2019-12-16T17:37:56.60 0.1 undecidable manual P 339 43.8228 50 -0.24 91
IV.MF5.EHN. 2019-12-16T17:37:56.19 0.3 undecidable manual P 22 38.2284 50 0.21 69
IT.MTCL.HGZ. 2019-12-16T17:37:56.55 0.3 undecidable manual P 327 42.8238 50 -0.14 70
IV.LNSS.HHZ. 2019-12-16T17:37:56.21 0.1 undecidable manual S 250 21.0678 110 0.18 96
IV.RM33.EHZ. 2019-12-16T17:37:55.53 0.6 undecidable manual S 198 18.5703 112 0.32 47
IV.MC2.EHZ. 2019-12-16T17:37:54.01 0.3 undecidable manual P 344 28.0497 105 -0.05 73
IV.CAMP.HHZ. 2019-12-16T17:37:54.75 0.6 undecidable manual S 145 17.9709 113 -0.27 47
IV.GIGS.HHZ. 2019-12-16T17:37:54.69 0.3 undecidable manual P 135 33.6441 103 -0.46 66
IV.MTRA.EHZ. 2019-12-16T17:37:53.44 0.6 undecidable manual S 43 13.4754 120 -0.17 49
IV.NRCA.HHZ. 2019-12-16T17:37:53.08 0.1 undecidable manual P 323 22.8549 109 0 99
IV.TERO.HHZ. 2019-12-16T17:37:53.62 0.1 undecidable manual P 101 26.6511 106 -0.18 95
IV.MMO1.EHZ. 2019-12-16T17:37:53.66 0.1 undecidable manual P 8 25.8519 107 0.02 98
IV.LNSS.HHZ. 2019-12-16T17:37:52.85 0.1 positive manual P 250 21.0678 110 0.11 97
IV.CAMP.HHZ. 2019-12-16T17:37:52.28 0.1 undecidable manual P 145 17.9709 113 0.13 97
IV.RM33.EHZ. 2019-12-16T17:37:52.40 0.1 undecidable manual P 198 18.5703 112 0.13 97
IV.MTRA.EHZ. 2019-12-16T17:37:51.56 0.1 undecidable manual P 43 13.4754 120 0.22 96
IV.T1299.HNN. 2019-12-16T17:37:51.11 0.1 undecidable manual S 181 3.7962 154 -0.11 100
IV.SMA1.EHZ. 2019-12-16T17:37:51.78 0.3 undecidable manual S 135 5.994 142 0.16 74
IV.SMA1.EHZ. 2019-12-16T17:37:50.50 0.1 undecidable manual P 135 5.994 142 0.31 96
IV.T1299.HNN. 2019-12-16T17:37:50.09 0.1 undecidable manual P 181 3.7962 154 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIGS.HHN. ML:0.0 0.000033408315 0.1664 AML other m 2019-12-16T17:38:00.20
IV.GIGS.HHE. ML:0.0 0.000018481425000000004 0.2432 AML other m 2019-12-16T17:38:02.46
IV.OFFI.HHN. ML:0.0 0.0001290647 0.4224 AML other m 2019-12-16T17:38:05.57
IV.OFFI.HHE. ML:0.0 0.00013500575 1.7184 AML other m 2019-12-16T17:38:08.99
IV.SMA1.EHN. ML:0.0 0.0017090215 0.192 AML other m 2019-12-16T17:37:52.21
IV.SMA1.EHE. ML:0.0 0.0020319935 0.1536 AML other m 2019-12-16T17:37:52.99
IV.MTRA.EHE. ML:1.8 0.0007584447000000001 0.192 AML other m 2019-12-16T17:37:54.73
IV.MTRA.HNE. ML:1.8 0.0007351380999999999 0.2048 AML other m 2019-12-16T17:37:54.73
IV.MTRA.HNN. ML:1.7 0.0006293594500000001 0.1408 AML other m 2019-12-16T17:37:53.96
IV.MTRA.EHN. ML:1.7 0.00063008325 0.1408 AML other m 2019-12-16T17:37:53.97
IV.CAMP.HHE. ML:1.5 0.00029191915 0.2432 AML other m 2019-12-16T17:37:55.37
IV.CAMP.HHN. ML:1.4 0.00020385275000000004 0.2176 AML other m 2019-12-16T17:37:55.37
IV.RM33.EHN. ML:1.5 0.00025056410000000003 0.3584 AML other m 2019-12-16T17:37:57.97
IV.RM33.HNN. ML:1.5 0.00028185710000000003 0.3456 AML other m 2019-12-16T17:37:55.74
IV.RM33.EHE. ML:1.6 0.00029563280000000005 0.3968 AML other m 2019-12-16T17:37:58.44
IV.RM33.HNE. ML:1.6 0.0003349777 0.3968 AML other m 2019-12-16T17:37:58.63
IV.LNSS.HNE. ML:1.7 0.00037553539999999995 0.1408 AML other m 2019-12-16T17:37:56.49
IV.LNSS.HHE. ML:1.7 0.0003895841 0.1152 AML other m 2019-12-16T17:37:56.49
IV.LNSS.HHN. ML:1.8 0.00054220135 0.1408 AML other m 2019-12-16T17:37:57.13
IV.LNSS.HNN. ML:1.8 0.00053406895 0.1408 AML other m 2019-12-16T17:37:57.13
IV.NRCA.HNN. ML:1.7 0.00033615040000000004 0.1408 AML other m 2019-12-16T17:37:57.08
IV.NRCA.HHE. ML:2.0 0.0007323035499999999 0.0896 AML other m 2019-12-16T17:37:57.38
IV.NRCA.HNE. ML:2.0 0.0006960023499999999 0.1152 AML other m 2019-12-16T17:37:57.38
IV.NRCA.HHN. ML:1.7 0.0003590814 0.1408 AML other m 2019-12-16T17:37:57.08
IV.TERO.HHN. ML:1.7 0.00026469985000000004 0.1024 AML other m 2019-12-16T17:37:58.17
IV.TERO.HHE. ML:1.6 0.00021820649999999996 0.1408 AML other m 2019-12-16T17:37:57.64
IV.FDMO.HHE. ML:1.1 0.000039197705 0.3328 AML other m 2019-12-16T17:38:06.05
IV.FDMO.HHN. ML:1.1 0.00003867531 0.4096 AML other m 2019-12-16T17:38:03.99
IV.CSP1.EHN. ML:1.4 0.000064814335 0.192 AML other m 2019-12-16T17:38:06.23
IV.CSP1.EHE. ML:1.2 0.00004907509 0.1792 AML other m 2019-12-16T17:38:05.99
IV.GUMA.HHE. ML:1.8 0.00021763700000000002 0.2688 AML other m 2019-12-16T17:38:04.50
IV.GUMA.HHN. ML:1.7 0.00015954275000000002 0.4352 AML other m 2019-12-16T17:38:04.67
IV.GUMA.HNE. ML:1.8 0.0001992216 0.5376 AML other m 2019-12-16T17:38:08.92
IV.CESI.HHE. ML:1.4 0.000071479925 0.2944 AML other m 2019-12-16T17:38:07.43
IV.CESI.HHN. ML:1.6 0.00010799195 0.256 AML other m 2019-12-16T17:38:04.95
IV.FAGN.HHE. ML:1.5 0.00007952866000000001 0.3328 AML other m 2019-12-16T17:38:08.16
IV.FAGN.HHN. ML:1.4 0.000058316674999999995 0.256 AML other m 2019-12-16T17:38:10.66
IV.VCEL.EHN. ML:1.5 0.00008134157 0.2944 AML other m 2019-12-16T17:38:08.79
IV.VCEL.EHE. ML:1.6 0.00010714008 0.256 AML other m 2019-12-16T17:38:08.88
IV.EL6.EHN. ML:1.4 0.000034740925 0.3072 AML other m 2019-12-16T17:38:18.28
IV.EL6.EHE. ML:1.5 0.000044181225000000005 0.3072 AML other m 2019-12-16T17:38:16.52
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