Earthquake with magnitude of ML 1.5 on date 02-02-2021 and time 03:11:55 (Italy) in region 4 km SE Avigliano Umbro (TR)

A magnitude ML 1.5 earthquake occured in region: 4 km SE Avigliano Umbro (TR), on

  • 02-02-2021 02:11:55 (UTC)
  • 02-02-2021 03:11:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.629, 12.452 at 7 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
Avigliano Umbro TR 4 2558 2558
Montecastrilli TR 4 5022 7580
San Gemini TR 8 5018 12598
Amelia TR 8 11897 24495
Acquasparta TR 10 4778 29273
Lugnano in Teverina TR 12 1494 30767
Guardea TR 13 1836 32603
Narni TR 13 19785 52388
Alviano TR 14 1463 53851
Montecchio TR 14 1676 55527
Giove TR 17 1928 57455
Penna in Teverina TR 17 1099 58554
Massa Martana PG 17 3770 62324
Terni TR 18 111501 173825
Todi PG 18 16851 190676
Attigliano TR 18 2028 192704
Orte VT 19 8923 201627
Baschi TR 20 2722 204349

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Terni (111501 inhabitants)
37 Km NE of Viterbo (67173 inhabitants)
42 Km SW of Foligno (57155 inhabitants)
54 Km S of Perugia (166134 inhabitants)
73 Km NW of Guidonia Montecelio (88673 inhabitants)
79 Km NW of Tivoli (56533 inhabitants)
80 Km NE of Civitavecchia (52991 inhabitants)
82 Km N of Roma (2864731 inhabitants)
84 Km W of L'Aquila (69753 inhabitants)
97 Km N of Fiumicino (78395 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 1.5 2021-02-02
02:11:55
42.6287 12.4525 7 2021-07-12
16:54:57
Bollettino Sismico Italiano INGV 86804281
Reviewed
Rev100
ML 1.6 2021-02-02
02:11:55
42.6307 12.4635 8 2021-02-02
02:16:58
Sala Sismica INGV-Roma 86776001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-02 02:11:55 ± 0.1
Latitude 42.6287 ± 0.0045
Longitude 12.4525 ± 0.0073
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86804281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 488
Semi-minor axis of confidence ellipse (meter) 488
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.661
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86776001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-02 02:16:58

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 86804281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-03 11:00:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTRZ.HNZ. 2021-02-02T02:12:31.35 3.0 undecidable manual Pg 1 0
IV.SMA1.EHZ. 2021-02-02T02:12:19.02 0.6 undecidable manual S 90 0.6493 50 0.76 37
IV.MURB.HHZ. 2021-02-02T02:12:18.44 0.3 undecidable manual S 5 0.6358 50 0.56 60
IV.FDMO.HHZ. 2021-02-02T02:12:17.37 0.3 undecidable manual S 49 0.6187 50 0.01 68
IV.CESI.HHZ. 2021-02-02T02:12:13.72 0.6 undecidable manual S 41 0.5009 50 -0.16 45
IV.BARO.HNZ. 2021-02-02T02:12:13.64 0.6 undecidable manual S 218 0.482 50 0.33 44
IV.ASSB.HHZ. 2021-02-02T02:12:11.94 0.3 undecidable manual S 20 0.4407 50 -0.14 69
IV.GAVE.HNE. 2021-02-02T02:12:09.08 0.6 undecidable manual S 79 0.331 101 0.41 44
IV.SMA1.EHZ. 2021-02-02T02:12:08.52 0.3 undecidable manual P 90 0.6493 50 -0.21 65
IV.MURB.HHZ. 2021-02-02T02:12:08.86 0.3 undecidable manual P 5 0.6358 50 0.35 63
IV.ATVA.EHE. 2021-02-02T02:12:08.68 0.1 undecidable manual P 349 0.661 50 -0.25 86
IV.FDMO.HHZ. 2021-02-02T02:12:07.83 0.3 undecidable manual P 49 0.6187 50 -0.37 63
IV.BARO.HNZ. 2021-02-02T02:12:06.07 0.6 undecidable manual P 218 0.482 50 0.2 45
IV.SACS.HHZ. 2021-02-02T02:12:05.79 0.3 undecidable manual P 299 0.4551 50 0.38 65
IV.ARRO.EHZ. 2021-02-02T02:12:05.22 0.3 undecidable manual S 102 0.2356 105 0.12 72
IV.CESI.HHZ. 2021-02-02T02:12:05.98 0.3 undecidable manual P 41 0.5009 50 -0.22 67
IV.ASSB.HHZ. 2021-02-02T02:12:04.90 0.1 negative manual P 20 0.4407 50 -0.26 90
IV.SRES.HHZ. 2021-02-02T02:12:03.96 0.3 undecidable manual P 174 0.3939 50 -0.4 66
IV.MGAB.HHZ. 2021-02-02T02:12:03.94 0.3 undecidable manual P 319 0.3777 50 -0.15 70
IV.MOMA.HHZ. 2021-02-02T02:12:03.63 0.3 undecidable manual S 26 0.1952 108 0.02 74
IV.GAVE.HNE. 2021-02-02T02:12:02.76 0.3 undecidable manual P 79 0.331 101 -0.43 66
IV.ARRO.EHZ. 2021-02-02T02:12:01.05 0.3 undecidable manual P 102 0.2356 105 -0.08 73
IV.MOMA.HHZ. 2021-02-02T02:12:00.27 0.1 positive manual P 26 0.1952 108 0 99
IT.GNU.HGE. 2021-02-02T02:12:00.42 0.3 undecidable manual P 26 0.1952 108 0.15 72
IV.CESX.HHZ. 2021-02-02T02:12:00.40 0.3 undecidable manual S 101 0.1007 122 0.1 74
IV.CESX.HHZ. 2021-02-02T02:11:58.40 0.1 positive manual P 101 0.1007 122 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.8 0.000997 0.26 AML other m 2021-02-02T02:12:00.69
IV.CESX.HHE. ML:1.7 0.0007285 1.68 AML other m 2021-02-02T02:12:00.84
IV.MOMA.HHN. ML:1.3 0.00013653355 0.2192 AML other m 2021-02-02T02:12:06.61
IV.ARRO.EHE. ML:1.3 0.0001082 1.52 AML other m 2021-02-02T02:12:06.87
IV.MOMA.HHE. ML:1.4 0.00020329085 0.16 AML other m 2021-02-02T02:12:06.14
IV.ARRO.EHN. ML:1.6 0.000204 0.24 AML other m 2021-02-02T02:12:06.39
IV.ASSB.HHE. ML:1.3 4.92E-5 0.34 AML other m 2021-02-02T02:12:12.30
IV.ASSB.HHN. ML:1.2 4.031861E-5 0.3392 AML other m 2021-02-02T02:12:14.23
IV.SMA1.EHE. ML:1.8 0.0001068 0.32 AML other m 2021-02-02T02:12:19.61
IV.MURB.HHE. ML:2 0.0001665 0.3 AML other m 2021-02-02T02:12:19.91
IV.SMA1.EHN. ML:1.7 7.28E-5 0.36 AML other m 2021-02-02T02:12:20.39
IV.MURB.HHN. ML:1.9 0.00013 0.32 AML other m 2021-02-02T02:12:22.59
IV.MOMA.HNN. ML:1.3 0.000147712645 0.28 AML other m 2021-02-02T02:12:06.61
IV.MOMA.HNE. ML:1.4 0.0001955564 0.1488 AML other m 2021-02-02T02:12:06.14
IV.CESI.HNN. ML:1.8 0.00015133115 0.4512 AML other m 2021-02-02T02:12:19.36
IV.CESI.HHE. ML:1.2 3.7992975E-5 0.2592 AML other m 2021-02-02T02:12:15.79
IV.CESI.HHN. ML:1.5 7.397418E-5 0.2608 AML other m 2021-02-02T02:12:16.32
IV.CESI.HNE. ML:1.8 0.0001302269 0.92 AML other m 2021-02-02T02:12:07.06
IV.FDMO.HHE. ML:1.3 3.4602965E-5 0.2192 AML other m 2021-02-02T02:12:18.47
IV.FDMO.HHN. ML:1.1 1.960145E-5 0.4192 AML other m 2021-02-02T02:12:23.96
IV.MURB.HNE. ML:2 0.00017583085 0.4288 AML other m 2021-02-02T02:12:19.55
IV.MURB.HNN. ML:1.8 0.000115042095 0.3008 AML other m 2021-02-02T02:12:20.20
IV.MTRZ.HHE. ML:2.3 6.1402633E-5 1.44 AML other m 2021-02-02T02:13:17.00
IV.MTRZ.HNN. ML:3.9 0.002451542 0.4496 AML other m 2021-02-02T02:12:59.82
IV.MTRZ.HNE. ML:3.5 0.000863784 0.4496 AML other m 2021-02-02T02:12:59.82
IV.MTRZ.HHN. ML:2.4 6.6561545E-5 1.12 AML other m 2021-02-02T02:13:24.33
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