Earthquake with magnitude of ML 0.8 on date 19-03-2021 and time 16:03:03 (Italy) in region 2 km SW Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 2 km SW Amatrice (RI), on

  • 19-03-2021 15:03:03 (UTC)
  • 19-03-2021 16:03:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6170, 13.2750 at 8 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.

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 2 2657 2657
Accumoli RI 9 667 3324
Cittareale RI 9 482 3806
Campotosto AQ 10 542 4348
Montereale AQ 11 2581 6929
Capitignano AQ 11 665 7594
Borbona RI 16 617 8211
Arquata del Tronto AP 18 1178 9389
Posta RI 18 694 10083
Cagnano Amiterno AQ 18 1369 11452
Barete AQ 18 737 12189
Crognaleto TE 18 1297 13486
Cortino TE 19 656 14142
Pizzoli AQ 20 4326 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
52 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
98 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
Reviewed
Rev100
ML 0.8 2021-03-19
15:03:03
42.6168 13.2753 8 2021-03-19
15:13:21
Sala Sismica INGV-Roma 88279011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-19 15:03:03 ± 0.31
Latitude 42.6168 ± 0.0117
Longitude 13.2753 ± 0.0086
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88279011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1069
Semi-minor axis of confidence ellipse (meter) 790
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 169
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24192
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 88279011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-19 15:13:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.IMI.HHZ. 2021-03-19T15:04:50.48 3.0 undecidable manual Sg 18.58 0
IV.MONC.HHZ. 2021-03-19T15:04:40.69 3.0 undecidable manual Sn -1.51 0
IV.FVI.HHZ. 2021-03-19T15:04:31.66 3.0 undecidable manual Sn -0.72 0
AC.VLO.HHZ. 2021-03-19T15:04:22.46 3.0 undecidable manual Pn 6.42 0
MN.TIR.HHZ. 2021-03-19T15:04:17.97 3.0 positive manual Pn 3.19 0
IV.ZEN8.EHZ. 2021-03-19T15:04:17.99 3.0 undecidable manual Sn 0.37 0
IV.TREG.EHZ. 2021-03-19T15:04:16.88 3.0 undecidable manual Sg 5.03 0
IV.PCN.EHZ. 2021-03-19T15:04:14.51 3.0 undecidable manual Sn -2.03 0
IV.ESCV.HHZ. 2021-03-19T15:04:11.77 3.0 negative manual Pn -1.12 0
IV.LADO.EHZ. 2021-03-19T15:04:05.62 3.0 undecidable manual Pn 0.37 0
IV.SENA.HHZ. 2021-03-19T15:04:02.27 3.0 undecidable manual Pg 15.74 0
CR.STON.BHZ. 2021-03-19T15:03:56.02 3.0 undecidable manual Pn 7.08 0
ST.CARE.EHZ. 2021-03-19T15:03:48.13 3.0 undecidable manual Pn -2.88 0
IV.EUCT.HNZ. 2021-03-19T15:03:43.49 3.0 undecidable manual Pn -2.82 0
IT.GLNS.HNZ. 2021-03-19T15:03:31.23 3.0 undecidable manual Pg 6.32 0
GU.GSCL.HHZ. 2021-03-19T15:03:28.43 3.0 negative manual Pn 0.51 0
IV.PTRJ.HNZ. 2021-03-19T15:03:27.14 3.0 undecidable manual Pn 0.3 0
IV.IMOL.HNZ. 2021-03-19T15:03:22.10 3.0 negative manual Pg 1.09 0
IV.FIR.HHZ. 2021-03-19T15:03:17.52 3.0 undecidable manual P -0.25 0
IV.TERO.HHZ. 2021-03-19T15:03:12.53 0.3 undecidable manual S 88 26.8509 106 -0.4 66
IV.MNTT.EHZ. 2021-03-19T15:03:10.11 3.0 positive manual P 2.37 0
IV.LNSS.HHZ. 2021-03-19T15:03:10.73 0.6 undecidable manual S 265 19.2696 111 0.29 46
IV.TERO.HHZ. 2021-03-19T15:03:08.49 0.3 undecidable manual P 88 26.8509 106 -0.35 67
IV.RM33.EHZ. 2021-03-19T15:03:08.01 0.6 undecidable manual S 203 12.9759 120 -0.46 45
IV.CAMP.HHZ. 2021-03-19T15:03:08.81 0.6 undecidable manual S 129 14.1747 118 -0.02 49
IV.CAMP.HHZ. 2021-03-19T15:03:07.29 0.1 undecidable manual P 129 14.1747 118 0.82 78
IV.LNSS.HHZ. 2021-03-19T15:03:07.22 0.3 undecidable manual P 265 19.2696 111 -0.18 70
IV.SMA1.EHZ. 2021-03-19T15:03:06.61 0.6 undecidable manual S 73 5.0949 146 0.18 48
IV.RM33.EHZ. 2021-03-19T15:03:06.15 0.1 undecidable manual P 203 12.9759 120 -0.12 96
IV.SMA1.EHZ. 2021-03-19T15:03:05.33 0.1 positive manual P 73 5.0949 146 0.24 95
IV.T1299.EHE. 2021-03-19T15:03:05.69 0.6 undecidable manual S 16 1.998 165 -0.28 47
IV.T1299.EHE. 2021-03-19T15:03:04.82 0.1 undecidable manual P 16 1.998 165 -0.01 100
IV.ATFO.HHZ. 2021-03-19T15:03:01.71 3.0 negative manual P -2.82 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.4 0.00046399999999999995 1.82 AML other m 2021-03-19T15:03:06.00
IV.SMA1.EHN. ML:1.3 0.00036350000000000005 0.14 AML other m 2021-03-19T15:03:07.13
IV.RM33.EHE. ML:0.9 0.00008675 0.62 AML other m 2021-03-19T15:03:08.89
IV.LNSS.HHE. ML:0.8 0.0000567 1.86 AML other m 2021-03-19T15:03:10.94
IV.RM33.EHN. ML:0.8 0.00008080000000000001 0.36 AML other m 2021-03-19T15:03:11.35
IV.LNSS.HHN. ML:0.8 0.0000554 1.14 AML other m 2021-03-19T15:03:16.36
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download