Earthquake with magnitude of ML 1.2 on date 28-10-2020 and time 18:19:04 (UTC) in region 3 km SW Cittareale (RI)

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

  • 28-10-2020 18:19:04 (UTC)
  • 28-10-2020 19:19:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6, 13.13 at 12 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 3 482 482
Posta RI 9 694 1176
Borbona RI 10 617 1793
Montereale AQ 13 2581 4374
Amatrice RI 13 2657 7031
Accumoli RI 14 667 7698
Leonessa RI 15 2435 10133
Monteleone di Spoleto PG 16 599 10732
Cascia PG 16 3217 13949
Capitignano AQ 17 665 14614
Cagnano Amiterno AQ 18 1369 15983
Micigliano RI 18 127 16110

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
40 Km E of Terni (111501 inhabitants)
47 Km W of Teramo (54892 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
75 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km NE of Tivoli (56533 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
87 Km E of Viterbo (67173 inhabitants)
90 Km W of Chieti (51815 inhabitants)
90 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
Bulletin
Rev1000
ML 1.2 2020-10-28
18:19:04
42.6 13.13 12 2021-02-26
14:56:14
Bollettino Sismico Italiano INGV 86175191
Reviewed
Rev100
ML 1.2 2020-10-28
18:19:04
42.61 13.13 11 2020-10-28
19:31:17
Sala Sismica INGV-Roma 84219891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-28 18:19:04 ± 0.06
Latitude 42.60 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86175191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 219
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 18
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
Epicentral distance of station farthest from the epicenter (degree) 0.34804
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 86175191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-11 16:25:28

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 84219891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-28 19:31:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RMP.HHZ. 2020-10-28T18:19:31.89 3.0 undecidable manual S -0.08 0
IV.RMP.HHZ. 2020-10-28T18:19:29.44 3.0 undecidable manual P 9.2 0
IV.SAMA.EHZ. 2020-10-28T18:19:22.23 3.0 negative manual P 3.61 0
IV.TERO.HHZ. 2020-10-28T18:19:16.71 0.6 undecidable manual S 87 0.348 92 -0.2 46
IV.MTRA.HNZ. 2020-10-28T18:19:13.70 0.6 undecidable manual S 52 0.2464 93 -0.22 47
IV.NRCA.HHZ. 2020-10-28T18:19:13.23 0.3 undecidable manual S 357 0.2293 93 -0.17 71
IV.CAMP.HHZ. 2020-10-28T18:19:12.85 0.6 undecidable manual S 109 0.2149 94 -0.14 48
IV.GAVE.EHZ. 2020-10-28T18:19:12.31 0.3 undecidable manual S 297 0.1952 95 -0.09 73
IV.SMA1.EHZ. 2020-10-28T18:19:11.21 0.3 undecidable manual S 80 0.152 100 0.09 74
IV.TERO.HHZ. 2020-10-28T18:19:11.52 0.3 undecidable manual P 87 0.348 92 0.01 73
IV.T1299.EHZ. 2020-10-28T18:19:10.06 0.3 undecidable manual S 75 0.1142 114 0 76
IV.CAMP.HHZ. 2020-10-28T18:19:09.25 0.3 undecidable manual P 109 0.2149 94 0 75
IV.RM33.EHZ. 2020-10-28T18:19:09.70 0.3 undecidable manual S 148 0.1133 114 -0.33 72
IV.MTRA.HNZ. 2020-10-28T18:19:09.75 0.1 undecidable manual P 52 0.2464 93 -0.04 98
IV.NRCA.HHZ. 2020-10-28T18:19:09.47 0.1 undecidable manual P 357 0.2293 93 -0.02 98
IV.SMA1.EHZ. 2020-10-28T18:19:08.46 0.1 positive manual P 80 0.152 100 0.29 95
IV.LNSS.HHZ. 2020-10-28T18:19:08.83 0.3 undecidable manual S 268 0.0674 137 -0.1 76
IV.GAVE.EHZ. 2020-10-28T18:19:08.99 0.3 undecidable manual P 297 0.1952 95 0.08 74
IV.LNSS.HHZ. 2020-10-28T18:19:07.05 0.1 undecidable manual P 268 0.0674 137 0.14 99
IV.RM33.EHZ. 2020-10-28T18:19:07.59 0.1 undecidable manual P 148 0.1133 114 0.05 100
IV.T1299.EHZ. 2020-10-28T18:19:07.78 0.1 undecidable manual P 75 0.1142 114 0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.3 0.000245 0.16 AML other m 2020-10-28T18:19:08.97
IV.LNSS.HHE. ML:1.3 0.0002765 0.12 AML other m 2020-10-28T18:19:09.06
IV.SMA1.EHE. ML:1.2 0.00014 0.5 AML other m 2020-10-28T18:19:11.68
IV.SMA1.EHN. ML:1.1 9.475E-5 0.48 AML other m 2020-10-28T18:19:11.52
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download