Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 05-12-2019 and time 22:18:05 (UTC) in region 4 km W Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km W Amatrice (RI), on

  • 05-12-2019 22:18:05 (UTC)
  • 05-12-2019 23:18:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6370, 13.2430 at 14 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
Amatrice RI 4 2657 2657
Accumoli RI 7 667 3324
Cittareale RI 7 482 3806
Montereale AQ 13 2581 6387
Campotosto AQ 14 542 6929
Capitignano AQ 14 665 7594
Arquata del Tronto AP 16 1178 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cagnano Amiterno AQ 20 1369 11452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
96 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 0.8 2019-12-05
22:18:05		 42.6373 13.243 14 2019-12-05
22:30:33		 Sala Sismica INGV-Roma 74357431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-05 22:18:05 ± 0.12
Latitude 42.6373 ± 0.0054
Longitude 13.2430 ± 0.0073
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74357431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 578
Semi-minor axis of confidence ellipse (meter) 469
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27699
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 74357431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-05 22:30:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.ZAG.BHZ. 2019-12-05T22:19:58.24 3.0 undecidable manual Sg 17.32 0
IV.NOCI.HHZ. 2019-12-05T22:19:56.69 3.0 undecidable manual Sg 19.33 0
IV.MTGR.HHZ. 2019-12-05T22:19:15.71 3.0 undecidable manual Pn 1.52 0
IV.ILLI.HHZ. 2019-12-05T22:19:11.93 3.0 undecidable manual Pn 2.43 0
IV.VARE.HHZ. 2019-12-05T22:19:07.84 3.0 negative manual Pn -0.02 0
IV.MTMR.EHZ. 2019-12-05T22:19:06.14 3.0 undecidable manual Sn -1.15 0
IV.MODR.HHZ. 2019-12-05T22:18:56.36 3.0 undecidable manual Sg 3.88 0
IV.RIBO.EHZ.01 2019-12-05T22:18:28.60 3.0 undecidable manual Pg 0.09 0
IV.MC2.EHZ. 2019-12-05T22:18:17.12 0.6 undecidable manual S 352 30.747 99 0.62 56
IV.MMO1.HNZ. 2019-12-05T22:18:16.34 0.6 undecidable manual S 13 29.8479 99 0.07 64
IV.GAVE.HNZ. 2019-12-05T22:18:16.16 0.6 undecidable manual S 282 29.0487 100 0.08 65
IV.TERO.HHZ. 2019-12-05T22:18:15.95 0.3 undecidable manual S 93 29.5482 99 -0.23 94
IV.NRCA.HHZ. 2019-12-05T22:18:14.63 0.6 undecidable manual S 334 24.1536 103 -0.15 64
IV.MTRA.HNZ. 2019-12-05T22:18:13.03 0.6 undecidable manual S 43 18.1707 112 -0.23 64
IV.LNSS.HNZ. 2019-12-05T22:18:12.53 1.0 undecidable manual S 257 16.9719 114 -0.43 30
IV.RM33.EHZ. 2019-12-05T22:18:12.25 0.6 undecidable manual S 189 14.4744 121 -0.11 65
IV.NRCA.HHZ. 2019-12-05T22:18:11.15 0.3 undecidable manual P 334 24.1536 103 0.17 95
IV.SMA1.EHZ. 2019-12-05T22:18:11.17 0.6 undecidable manual S 96 7.5813 144 0.18 66
IV.TERO.HHZ. 2019-12-05T22:18:11.80 0.3 undecidable manual P 93 29.5482 99 0.01 97
IV.MC2.EHZ. 2019-12-05T22:18:11.20 0.3 undecidable manual P 352 30.747 99 -0.77 79
IV.MMO1.HNZ. 2019-12-05T22:18:11.96 0.3 undecidable manual P 13 29.8479 99 0.12 95
IV.GAVE.HNZ. 2019-12-05T22:18:11.76 0.3 undecidable manual P 282 29.0487 100 0.03 97
IV.MTRA.HNZ. 2019-12-05T22:18:10.16 0.3 undecidable manual P 43 18.1707 112 0.05 98
IV.LNSS.HNZ. 2019-12-05T22:18:10.05 0.3 undecidable manual P 257 16.9719 114 0.12 98
IV.T1299.EHZ. 2019-12-05T22:18:10.17 0.6 undecidable manual S 96 3.1968 164 -0.31 63
IV.SMA1.EHZ. 2019-12-05T22:18:09.04 0.3 undecidable manual P 96 7.5813 144 0.24 97
IV.RM33.EHZ. 2019-12-05T22:18:09.74 0.3 undecidable manual P 189 14.4744 121 0.16 97
IV.T1299.EHZ. 2019-12-05T22:18:08.64 0.3 undecidable manual P 96 3.1968 164 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.3 0.00023658735000000003 0.1792 AML other m 2019-12-05T22:18:11.54
IV.SMA1.EHN. ML:1.0 0.00011907235499999999 0.1152 AML other m 2019-12-05T22:18:11.33
IV.RM33.EHE. ML:1.0 0.00008358188999999999 0.1664 AML other m 2019-12-05T22:18:12.63
IV.RM33.EHN. ML:0.7 0.0000381873245 0.0768 AML other m 2019-12-05T22:18:12.31
IV.NRCA.HNN. ML:1.7 0.00026794655 1.1904 AML other m 2019-12-05T22:18:12.86
IV.NRCA.HHE. ML:0.6 0.000024125225 0.1024 AML other m 2019-12-05T22:18:16.38
IV.NRCA.HHN. ML:0.6 0.000021518865 0.1024 AML other m 2019-12-05T22:18:16.01
IV.TERO.HHN. ML:0.3 0.000010061084500000002 0.064 AML other m 2019-12-05T22:18:16.80
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