Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 07-12-2019 and time 15:36:41 (Italy) in region 5 km SW Accumoli (RI)

A magnitude ML 0.9 earthquake occured in region: 5 km SW Accumoli (RI), on

  • 07-12-2019 14:36:41 (UTC)
  • 07-12-2019 15:36:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6610, 13.2200 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 5 667 667
Amatrice RI 7 2657 3324
Cittareale RI 7 482 3806
Arquata del Tronto AP 14 1178 4984
Montereale AQ 15 2581 7565
Campotosto AQ 17 542 8107
Capitignano AQ 17 665 8772
Borbona RI 18 617 9389
Norcia PG 18 4957 14346
Cascia PG 18 3217 17563
Posta RI 18 694 18257
Acquasanta Terme AP 20 2916 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km W of Chieti (51815 inhabitants)
95 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 2019-12-07
14:36:41		 42.6608 13.2202 10 2020-02-28
16:42:20		 Bollettino Sismico Italiano INGV 75833551
Reviewed
Rev100 		ML 0.9 2019-12-07
14:36:42		 42.6618 13.2073 8 2019-12-07
14:43:06		 Sala Sismica INGV-Roma 74405211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-07 14:36:41 ± 0.1
Latitude 42.6608 ± 0.0045
Longitude 13.2202 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75833551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 489
Semi-minor axis of confidence ellipse (meter) 463
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.24192
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75833551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-25 11:00:44

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 74405211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-07 14:43:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-12-07T14:36:51.60 0.6 undecidable manual S 278 26.8509 50 -0.06 49
IV.NRCA.HHZ. 2019-12-07T14:36:49.87 0.3 undecidable manual S 336 20.9679 116 -0.14 73
IV.RM33.EHZ. 2019-12-07T14:36:48.44 0.6 undecidable manual S 182 16.872 122 -0.31 47
IV.LNSS.HHZ. 2019-12-07T14:36:48.69 0.6 undecidable manual S 246 16.0728 123 0.18 49
IV.GAVE.EHZ. 2019-12-07T14:36:47.46 0.3 undecidable manual P 278 26.8509 50 -0.07 73
IV.SMA1.EHZ. 2019-12-07T14:36:46.96 0.6 undecidable manual S 110 9.9789 136 0.09 50
IV.NRCA.HHZ. 2019-12-07T14:36:46.65 0.1 undecidable manual P 336 20.9679 116 0.07 98
IV.SMA1.EHZ. 2019-12-07T14:36:45.07 0.1 undecidable manual P 110 9.9789 136 0.3 96
IV.LNSS.HHZ. 2019-12-07T14:36:45.83 0.1 undecidable manual P 246 16.0728 123 0.12 98
IV.RM33.EHZ. 2019-12-07T14:36:45.88 0.1 undecidable manual P 182 16.872 122 0.03 100
IV.T1299.HNN. 2019-12-07T14:36:45.88 0.6 undecidable manual S 120 5.8941 150 -0.13 50
IV.T1299.HNN. 2019-12-07T14:36:44.01 0.1 undecidable manual P 120 5.8941 150 -0.26 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.3 0.000242 0.3 AML other m 2019-12-07T14:36:47.41
IV.SMA1.EHN. ML:1.0 0.00013595 0.34 AML other m 2019-12-07T14:36:47.47
IV.RM33.EHN. ML:0.8 0.0000492 0.26 AML other m 2019-12-07T14:36:48.68
IV.RM33.EHE. ML:0.6 0.0000315 0.14 AML other m 2019-12-07T14:36:48.89
IV.NRCA.HHN. ML:1.1 0.00008074999999999998 0.14 AML other m 2019-12-07T14:36:50.01
IV.NRCA.HHE. ML:0.9 0.0000479 0.16 AML other m 2019-12-07T14:36:50.24
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