Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-12-2019 and time 22:50:50 (Italy) in region 3 km SW Cittareale (RI)

A magnitude ML 1.2 earthquake occured in region: 3 km SW Cittareale (RI), on

  • 08-12-2019 21:50:50 (UTC)
  • 08-12-2019 22:50:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5950, 13.1510 at 12 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.

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
Cittareale RI 3 482 482
Posta RI 9 694 1176
Borbona RI 9 617 1793
Montereale AQ 11 2581 4374
Amatrice RI 12 2657 7031
Accumoli RI 14 667 7698
Capitignano AQ 15 665 8363
Leonessa RI 16 2435 10798
Cagnano Amiterno AQ 16 1369 12167
Monteleone di Spoleto PG 17 599 12766
Micigliano RI 18 127 12893
Cascia PG 18 3217 16110
Campotosto AQ 19 542 16652
Barete AQ 19 737 17389

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of L'Aquila (69753 inhabitants)
41 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
88 Km W of Chieti (51815 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
88 Km W of Pescara (121014 inhabitants)
95 Km NE of Roma (2864731 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 1.2 2019-12-08
21:50:50		 42.5948 13.1508 12 2019-12-08
21:56:48		 Sala Sismica INGV-Roma 74443661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 21:50:50 ± 0.14
Latitude 42.5948 ± 0.0054
Longitude 13.1508 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74443661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 507
Semi-minor axis of confidence ellipse (meter) 295
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 74443661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 21:56:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-12-08T21:51:04.95 3.0 undecidable manual S -0.04 0
IV.TERO.HHZ. 2019-12-08T21:51:02.91 0.3 undecidable manual S 85 37.1295 93 -0.31 66
IV.NRCA.HNE. 2019-12-08T21:51:00.20 0.1 undecidable manual S 354 26.6511 95 -0.22 94
IV.TERO.HHZ. 2019-12-08T21:50:57.91 0.6 undecidable manual P 85 37.1295 93 -0.08 46
IV.SMA1.EHZ. 2019-12-08T21:50:57.64 0.1 undecidable manual S 75 15.5733 108 0.12 98
IV.NRCA.HNE. 2019-12-08T21:50:56.35 0.1 undecidable manual P 354 26.6511 95 -0.03 97
IV.T1299.EHZ. 2019-12-08T21:50:56.56 0.1 undecidable manual S 68 11.5773 122 0.01 100
IV.RM33.EHZ. 2019-12-08T21:50:56.21 0.1 undecidable manual S 151 10.878 125 -0.18 95
IV.LNSS.HHZ. 2019-12-08T21:50:55.96 0.1 undecidable manual S 276 9.0798 132 -0.06 100
IV.CAMP.HHZ. 2019-12-08T21:50:55.82 0.1 undecidable manual P 107 22.0668 98 0.14 97
IV.SMA1.EHZ. 2019-12-08T21:50:54.96 0.1 positive manual P 75 15.5733 108 0.26 95
IV.LNSS.HHZ. 2019-12-08T21:50:54.04 0.3 undecidable manual P 276 9.0798 132 0.21 72
IV.RM33.EHZ. 2019-12-08T21:50:54.17 0.1 undecidable manual P 151 10.878 125 0.12 99
IV.T1299.EHZ. 2019-12-08T21:50:54.32 0.1 undecidable manual P 68 11.5773 122 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.6 0.00046477115 0.1152 AML other m 2019-12-08T21:50:56.23
IV.LNSS.HHN. ML:1.5 0.00034851435 0.1408 AML other m 2019-12-08T21:50:56.77
IV.LNSS.HNE. ML:1.6 0.00041946655 0.1408 AML other m 2019-12-08T21:50:56.23
IV.LNSS.HNN. ML:1.4 0.00031004685 0.128 AML other m 2019-12-08T21:50:56.13
IV.RM33.EHE. ML:0.8 0.00006883092 0.128 AML other m 2019-12-08T21:50:56.60
IV.RM33.EHN. ML:1.1 0.000130917395 0.0896 AML other m 2019-12-08T21:50:56.42
IV.RM33.HNN. ML:1.1 0.000140760415 0.1792 AML other m 2019-12-08T21:50:56.58
IV.SMA1.EHE. ML:1.0 0.00009410365 0.2944 AML other m 2019-12-08T21:50:57.00
IV.SMA1.EHN. ML:0.6 0.000035342645000000006 0.1664 AML other m 2019-12-08T21:50:58.62
IV.TERO.HHE. ML:0.4 0.00000892877 0.0896 AML other m 2019-12-08T21:51:06.18
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