Earthquake with magnitude of ML 1.0 on date 26-10-2020 and time 03:50:21 (Italy) in region 8 km E Leonessa (RI)

A magnitude ML 1.0 earthquake occured in region: 8 km E Leonessa (RI), on

  • 26-10-2020 02:50:21 (UTC)
  • 26-10-2020 03:50:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.592, 13.056 at 16 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
Leonessa RI 8 2435 2435
Posta RI 8 694 3129
Cittareale RI 9 482 3611
Monteleone di Spoleto PG 11 599 4210
Borbona RI 11 617 4827
Cascia PG 15 3217 8044
Micigliano RI 16 127 8171
Poggiodomo PG 17 117 8288
Poggio Bustone RI 17 2055 10343
Montereale AQ 17 2581 12924
Polino TR 17 233 13157
Rivodutri RI 18 1253 14410
Cantalice RI 19 2755 17165
Accumoli RI 20 667 17832
Antrodoco RI 20 2588 20420
Amatrice RI 20 2657 23077
Morro Reatino RI 20 373 23450

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
39 Km NW of L'Aquila (69753 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
54 Km W of Teramo (54892 inhabitants)
71 Km NE of Guidonia Montecelio (88673 inhabitants)
73 Km N of Tivoli (56533 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
95 Km W of Chieti (51815 inhabitants)
96 Km W of Pescara (121014 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 1.0 2020-10-26
02:50:21
42.5925 13.0558 16 2021-02-26
14:56:19
Bollettino Sismico Italiano INGV 87179541
Reviewed
Rev100
ML 1.0 2020-10-26
02:50:21
42.5908 13.0552 16 2020-10-26
03:14:00
Sala Sismica INGV-Roma 84138821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-26 02:50:21 ± 0.07
Latitude 42.5925 ± 0.0063
Longitude 13.0558 ± 0.0037
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87179541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 559
Semi-minor axis of confidence ellipse (meter) 411
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 28
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) 0.41459
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 87179541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-15 12:16:24

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84138821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-26 03:14:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SENA.HHZ. 2020-10-26T02:51:47.35 3.0 undecidable manual Sg 8.17 0
IV.HAGA.HHZ. 2020-10-26T02:51:20.38 3.0 undecidable manual Pn -4.75 0
GU.RNCA.HHZ. 2020-10-26T02:51:13.07 3.0 undecidable manual Pn 6.65 0
IV.MCEL.HHZ. 2020-10-26T02:50:59.30 3.0 undecidable manual Pg 6.83 0
IV.MAON.HHZ. 2020-10-26T02:50:58.45 3.0 undecidable manual Sn 0.97 0
IV.PTRJ.HHZ. 2020-10-26T02:50:58.52 3.0 undecidable manual Sg 4.83 0
IV.RIBO.EHZ.01 2020-10-26T02:50:47.40 3.0 negative manual Pg 8.43 0
IV.MOMA.HHE. 2020-10-26T02:50:36.78 0.6 undecidable manual S 301 0.4146 98 0.65 40
IV.PAOL.HHZ. 2020-10-26T02:50:35.74 3.0 negative manual P -1.76 0
IV.CESX.HHZ. 2020-10-26T02:50:34.18 0.6 undecidable manual S 273 0.3453 100 0.07 47
IV.CAMP.HHZ. 2020-10-26T02:50:31.92 0.6 undecidable manual S 102 0.2662 105 0.1 47
IV.PTRJ.HHZ. 2020-10-26T02:50:31.92 3.0 undecidable manual Pn -2.46 0
IV.SMA1.EHZ. 2020-10-26T02:50:30.25 0.6 undecidable manual S 79 0.2086 112 0.04 48
IV.NRCA.HHZ. 2020-10-26T02:50:30.99 0.6 undecidable manual S 10 0.2446 107 -0.22 46
IV.ARRO.EHZ. 2020-10-26T02:50:29.89 0.6 undecidable manual S 267 0.214 111 -0.45 44
IV.T1299.HNE. 2020-10-26T02:50:29.25 0.6 undecidable manual S 76 0.1718 118 0.04 49
IV.MOMA.HHE. 2020-10-26T02:50:29.81 0.3 undecidable manual P 301 0.4146 98 -0.05 69
IV.RM33.EHZ. 2020-10-26T02:50:28.44 0.6 undecidable manual S 125 0.1439 125 -0.06 49
IV.CESX.HHZ. 2020-10-26T02:50:28.78 0.3 undecidable manual P 273 0.3453 100 0.09 70
IV.CAMP.HHZ. 2020-10-26T02:50:27.43 0.6 undecidable manual P 102 0.2662 105 0.06 48
IV.NRCA.HHZ. 2020-10-26T02:50:26.87 0.3 undecidable manual P 10 0.2446 107 -0.15 70
IV.ARRO.EHZ. 2020-10-26T02:50:26.47 0.1 undecidable manual P 267 0.214 111 -0.05 96
IV.LNSS.HHZ. 2020-10-26T02:50:26.46 0.6 undecidable manual S 312 0.0153 173 0.02 50
IV.SMA1.EHZ. 2020-10-26T02:50:26.52 0.1 undecidable manual P 79 0.2086 112 0.07 96
IV.SAMA.EHZ. 2020-10-26T02:50:26.27 3.0 positive manual P -0.62 0
IV.RM33.EHZ. 2020-10-26T02:50:25.45 0.1 positive manual P 125 0.1439 125 0 98
IV.T1299.HNE. 2020-10-26T02:50:25.87 0.1 undecidable manual P 76 0.1718 118 0 98
IV.LNSS.HHZ. 2020-10-26T02:50:24.23 0.1 undecidable manual P 312 0.0153 173 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:0.7 6.24E-5 0.84 AML other m 2020-10-26T02:50:26.56
IV.LNSS.HHE. ML:0.7 5.49E-5 0.72 AML other m 2020-10-26T02:50:27.70
IV.RM33.EHN. ML:1.1 9.595E-5 0.26 AML other m 2020-10-26T02:50:28.49
IV.RM33.EHE. ML:1 7.755E-5 0.28 AML other m 2020-10-26T02:50:28.71
IV.SMA1.EHN. ML:1 5.51E-5 0.28 AML other m 2020-10-26T02:50:30.64
IV.SMA1.EHE. ML:1.2 8.595E-5 0.32 AML other m 2020-10-26T02:50:30.82
IV.ARRO.EHN. ML:1 5.9E-5 1.8 AML other m 2020-10-26T02:50:30.02
IV.ARRO.EHE. ML:1 4.79E-5 0.86 AML other m 2020-10-26T02:50:31.43
IV.NRCA.HHE. ML:1 5.345E-5 0.16 AML other m 2020-10-26T02:50:31.63
IV.NRCA.HHN. ML:0.8 2.81E-5 0.14 AML other m 2020-10-26T02:50:31.62
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