Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 05-12-2019 and time 11:21:12 (UTC) in region 3 km NW Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 3 km NW Amatrice (RI), on

  • 05-12-2019 11:21:12 (UTC)
  • 05-12-2019 12:21:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6470, 13.2570 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
Amatrice RI 3 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 9 482 3806
Campotosto AQ 14 542 4348
Montereale AQ 14 2581 6929
Capitignano AQ 14 665 7594
Arquata del Tronto AP 15 1178 8772
Borbona RI 18 617 9389
Acquasanta Terme AP 19 2916 12305
Posta RI 19 694 12999

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
81 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
87 Km SE of Perugia (166134 inhabitants)
98 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
Bulletin
Rev1000 		ML 0.9 2019-12-05
11:21:12		 42.6467 13.2573 13 2020-02-28
16:42:22		 Bollettino Sismico Italiano INGV 76226901
Reviewed
Rev100 		ML 0.9 2019-12-05
11:21:12		 42.644 13.2598 14 2019-12-05
11:26:26		 Sala Sismica INGV-Roma 74338641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-05 11:21:12 ± 0.06
Latitude 42.6467 ± 0.0036
Longitude 13.2573 ± 0.0049
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 76226901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 221
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.27070
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 74338641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-05 11:26:26

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 76226901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-05 07:31:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-12-05T11:21:22.60 0.6 undecidable manual S 280 30.0477 96 -0.02 49
IV.TERO.HHZ. 2019-12-05T11:21:21.89 0.6 undecidable manual S 95 28.4493 97 -0.3 47
IV.NRCA.HHZ. 2019-12-05T11:21:20.81 0.3 undecidable manual S 331 23.754 100 -0.16 72
IV.LNSS.HHZ. 2019-12-05T11:21:19.49 0.3 undecidable manual S 255 18.3705 106 -0.07 74
IV.CAMP.HHE. 2019-12-05T11:21:19.19 0.6 undecidable manual S 135 17.4714 108 -0.14 49
IV.RM33.EHZ. 2019-12-05T11:21:18.67 0.3 undecidable manual S 193 15.6732 112 -0.21 73
IV.MTRA.EHZ. 2019-12-05T11:21:18.89 0.6 undecidable manual S 43 16.6722 110 -0.24 48
IV.GAVE.EHZ. 2019-12-05T11:21:18.13 0.1 undecidable manual P 280 30.0477 96 -0.06 97
IV.NRCA.HHZ. 2019-12-05T11:21:17.38 0.3 undecidable manual P 331 23.754 100 0.15 73
IV.TERO.HHZ. 2019-12-05T11:21:17.95 0.3 undecidable manual P 95 28.4493 97 0.01 74
IV.SMA1.EHN. 2019-12-05T11:21:16.89 0.3 undecidable manual S 106 6.5934 146 -0.1 77
IV.MTRA.EHZ. 2019-12-05T11:21:16.27 0.1 undecidable manual P 43 16.6722 110 0.1 99
IV.CAMP.HHE. 2019-12-05T11:21:16.48 0.3 undecidable manual P 135 17.4714 108 0.2 73
IV.LNSS.HHZ. 2019-12-05T11:21:16.50 0.1 positive manual P 255 18.3705 106 0.09 100
IV.RM33.EHZ. 2019-12-05T11:21:16.10 0.1 undecidable manual P 193 15.6732 112 0.08 100
IV.SMA1.EHN. 2019-12-05T11:21:15.17 0.1 undecidable manual P 106 6.5934 146 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.1 0.00011302232000000001 0.7808 AML other m 2019-12-05T11:21:15.43
IV.MTRA.HNE. ML:1.3 0.00015592400000000002 1.1232 AML other m 2019-12-05T11:21:16.87
IV.MTRA.HNN. ML:1.3 0.00016811975 0.64 AML other m 2019-12-05T11:21:16.53
IV.GAVE.EHN. ML:0.7 0.000022993997499999997 1.1648 AML other m 2019-12-05T11:21:17.19
IV.TERO.HHE. ML:0.5 0.000013658580000000002 0.4992 AML other m 2019-12-05T11:21:18.64
IV.RM33.EHN. ML:0.6 0.000035375804999999995 1.8848 AML other m 2019-12-05T11:21:19.05
IV.MTRA.EHN. ML:0.8 0.000045963475 0.256 AML other m 2019-12-05T11:21:19.33
IV.RM33.EHE. ML:0.7 0.00004544617 0.1792 AML other m 2019-12-05T11:21:19.48
IV.GAVE.EHE. ML:0.6 0.00001896366465 0.6784 AML other m 2019-12-05T11:21:19.88
IV.LNSS.HHE. ML:0.5 0.00002482568 0.1216 AML other m 2019-12-05T11:21:19.60
IV.RM33.HNE. ML:1.1 0.000110259545 1.5776 AML other m 2019-12-05T11:21:20.93
IV.GAVE.HNN. ML:1.6 0.00018644860000000002 0.6944 AML other m 2019-12-05T11:21:21.53
IV.MTRA.EHE. ML:0.6 0.00003382365 0.3008 AML other m 2019-12-05T11:21:21.22
IV.TERO.HHN. ML:0.5 0.000015927763000000002 0.0768 AML other m 2019-12-05T11:21:21.99
IV.LNSS.HHN. ML:0.5 0.00002358698 1.6992 AML other m 2019-12-05T11:21:22.89
IV.LNSS.HNE. ML:1.2 0.00012209895 0.992 AML other m 2019-12-05T11:21:28.56
IV.LNSS.HNN. ML:1.3 0.00014339619999999997 0.7872 AML other m 2019-12-05T11:21:28.60
IV.GAVE.HNE. ML:1.4 0.00011443412 0.9728 AML other m 2019-12-05T11:21:29.93
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