Earthquake with magnitude of ML 1.1 on date 30-12-2020 and time 11:08:47 (UTC) in region 5 km SE Cittareale (RI)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Cittareale (RI), on

  • 30-12-2020 11:08:47 (UTC)
  • 30-12-2020 12:08:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5910, 13.2020 at 14 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.

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 5 482 482
Montereale AQ 8 2581 3063
Amatrice RI 8 2657 5720
Borbona RI 10 617 6337
Capitignano AQ 11 665 7002
Posta RI 11 694 7696
Accumoli RI 12 667 8363
Campotosto AQ 14 542 8905
Cagnano Amiterno AQ 15 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337
Micigliano RI 20 127 15464
Leonessa RI 20 2435 17899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
98 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
Bulletin
Rev1000
ML 1.1 2020-12-30
11:08:47
42.5912 13.202 15 2021-02-26
14:56:16
Bollettino Sismico Italiano INGV 86633591
Reviewed
Rev100
ML 1.0 2020-12-30
11:08:47
42.5878 13.2058 13 2020-12-30
11:16:33
Sala Sismica INGV-Roma 85877431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-30 11:08:47 ± 0.12
Latitude 42.5912 ± 0.0063
Longitude 13.2020 ± 0.0061
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86633591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 589
Semi-minor axis of confidence ellipse (meter) 431
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 166
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) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.29768
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:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 86633591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 16:16:41

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85877431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-30 11:16:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-12-30T11:08:58.58 0.3 undecidable manual S 84 33.0447 100 -0.32 68
IV.NRCA.HHZ. 2020-12-30T11:08:57.43 0.3 undecidable manual S 345 27.8499 103 -0.11 72
IV.CAMP.HHE. 2020-12-30T11:08:55.17 0.6 undecidable manual S 110 17.9709 115 0.12 49
IV.TERO.HHZ. 2020-12-30T11:08:54.03 0.3 undecidable manual P 84 33.0447 100 -0.07 72
IV.NRCA.HHZ. 2020-12-30T11:08:53.62 0.3 undecidable manual P 345 27.8499 103 0.3 69
IV.LNSS.HHZ. 2020-12-30T11:08:53.77 0.3 undecidable manual S 276 13.2756 127 -0.2 73
IV.SMA1.EHZ. 2020-12-30T11:08:53.62 0.3 undecidable manual S 68 11.6772 131 -0.03 76
IV.T1299.HNZ. 2020-12-30T11:08:52.79 0.3 undecidable manual S 54 8.0808 144 -0.21 73
IV.SMA1.EHZ. 2020-12-30T11:08:51.34 0.3 undecidable manual P 68 11.6772 131 0.27 71
IV.LNSS.HHZ. 2020-12-30T11:08:51.28 0.1 undecidable manual P 276 13.2756 127 0.03 100
IV.CAMP.HHE. 2020-12-30T11:08:51.91 0.3 undecidable manual P 110 17.9709 115 0.03 75
IV.T1299.HNZ. 2020-12-30T11:08:50.83 0.1 undecidable manual P 54 8.0808 144 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNN. ML:1.2 0.00015454125 0.72 AML other m 2020-12-30T11:08:53.55
IV.LNSS.HHN. ML:1.0 0.00009577132499999999 1.7184 AML other m 2020-12-30T11:08:53.05
IV.LNSS.HHE. ML:1.3 0.00016015470000000002 1.8784 AML other m 2020-12-30T11:08:53.00
IV.SMA1.EHN. ML:1.0 0.00009145 0.14 AML other m 2020-12-30T11:08:54.03
IV.LNSS.HNE. ML:1.2 0.00015204447500000002 0.1344 AML other m 2020-12-30T11:08:54.00
IV.SMA1.EHE. ML:1.3 0.00019700000000000002 1.48 AML other m 2020-12-30T11:08:54.11
IV.NRCA.HHE. ML:0.9 0.00003892648 0.16 AML other m 2020-12-30T11:08:57.62
IV.NRCA.HHN. ML:0.7 0.0000225368655 0.1152 AML other m 2020-12-30T11:08:57.78
IV.TERO.HHN. ML:0.9 0.0000326290145 1.0592 AML other m 2020-12-30T11:08:58.75
IV.TERO.HHE. ML:0.8 0.000026791619999999997 0.1408 AML other m 2020-12-30T11:08:58.85
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