Earthquake with magnitude of ML 0.8 on date 29-10-2020 and time 20:24:23 (UTC) in region 4 km W Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km W Amatrice (RI), on

  • 29-10-2020 20:24:23 (UTC)
  • 29-10-2020 21:24:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.64, 13.24 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
Amatrice RI 4 2657 2657
Accumoli RI 6 667 3324
Cittareale RI 7 482 3806
Montereale AQ 13 2581 6387
Campotosto AQ 14 542 6929
Capitignano AQ 15 665 7594
Arquata del Tronto AP 15 1178 8772
Borbona RI 17 617 9389
Posta RI 18 694 10083
Acquasanta Terme AP 20 2916 12999

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
56 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
83 Km W of Chieti (51815 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
96 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 0.8 2020-10-29
20:24:23
42.65 13.24 13 2021-02-26
14:56:13
Bollettino Sismico Italiano INGV 86027741
Reviewed
Rev100
ML 0.8 2020-10-29
20:24:23
42.64 13.24 12 2020-10-29
20:45:47
Sala Sismica INGV-Roma 84244731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 20:24:23 ± 0.05
Latitude 42.65 ± 0.00
Longitude 13.24 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86027741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 317
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2689
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 86027741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-05 12:06:40

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 84244731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 20:45:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
TV.SF01.EHZ. 2020-10-29T20:24:46.80 3.0 undecidable manual P 5.88 0
IV.RMP.HHZ. 2020-10-29T20:24:46.31 3.0 undecidable manual Sn -0.01 0
IV.TERO.HHZ. 2020-10-29T20:24:33.25 0.6 undecidable manual S 95 0.2689 95 -0.39 46
IV.GAVE.EHN. 2020-10-29T20:24:33.28 0.6 undecidable manual S 281 0.2581 95 -0.05 49
IV.MMO1.EHZ. 2020-10-29T20:24:33.63 0.6 undecidable manual S 14 0.2617 95 0.19 48
IV.NRCA.HHZ. 2020-10-29T20:24:31.71 0.1 undecidable manual S 334 0.2095 98 -0.19 96
IV.CAMP.HHZ. 2020-10-29T20:24:30.41 0.6 undecidable manual S 131 0.1655 103 -0.21 48
IV.LNSS.HNE. 2020-10-29T20:24:30.09 0.1 undecidable manual S 254 0.1529 106 -0.15 98
IV.MTRA.EHE. 2020-10-29T20:24:30.21 0.6 undecidable manual S 46 0.1601 104 -0.25 48
IV.MMO1.EHZ. 2020-10-29T20:24:29.20 0.3 undecidable manual P 14 0.2617 95 0.09 74
IV.RM33.EHZ. 2020-10-29T20:24:29.65 0.3 undecidable manual S 188 0.1376 111 -0.16 74
IV.TERO.HHZ. 2020-10-29T20:24:29.19 0.1 undecidable manual P 95 0.2689 95 -0.04 98
IV.GAVE.EHN. 2020-10-29T20:24:29.01 0.3 undecidable manual P 281 0.2581 95 -0.04 74
IV.SMA1.EHZ. 2020-10-29T20:24:28.34 0.6 undecidable manual S 102 0.0719 138 0.14 50
IV.NRCA.HHZ. 2020-10-29T20:24:28.28 0.1 undecidable manual P 334 0.2095 98 0.06 100
IV.RM33.EHZ. 2020-10-29T20:24:27.16 0.1 undecidable manual P 188 0.1376 111 0.14 99
IV.T1299.EHE. 2020-10-29T20:24:27.37 0.3 undecidable manual S 109 0.0333 159 -0.23 74
IV.CAMP.HHZ. 2020-10-29T20:24:27.54 0.3 undecidable manual P 131 0.1655 103 0.06 75
IV.LNSS.HNE. 2020-10-29T20:24:27.36 0.1 undecidable manual P 254 0.1529 106 0.09 100
IV.MTRA.EHE. 2020-10-29T20:24:27.46 0.3 undecidable manual P 46 0.1601 104 0.07 75
IV.SMA1.EHZ. 2020-10-29T20:24:26.36 0.1 undecidable manual P 102 0.0719 138 0.27 97
IV.T1299.EHE. 2020-10-29T20:24:25.92 0.1 undecidable manual P 109 0.0333 159 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1 0.0001242 0.9 AML other m 2020-10-29T20:24:28.65
IV.SMA1.EHE. ML:1.3 0.0002595 0.18 AML other m 2020-10-29T20:24:28.79
IV.NRCA.HHN. ML:0.8 4.21E-5 0.1 AML other m 2020-10-29T20:24:31.88
IV.NRCA.HHE. ML:0.9 4.385E-5 0.12 AML other m 2020-10-29T20:24:32.31
IV.TERO.HHE. ML:0.5 1.5007432E-5 0.064 AML other m 2020-10-29T20:24:33.69
IV.TERO.HHN. ML:0.3 1.20401715E-5 0.0512 AML other m 2020-10-29T20:24:33.72
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