Earthquake with magnitude of ML 1.1 on date 24-03-2021 and time 02:37:46 (UTC) in region 3 km S Preci (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km S Preci (PG), on

  • 24-03-2021 02:37:46 (UTC)
  • 24-03-2021 03:37:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8490, 13.0450 at 10 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
Preci PG 3 724 724
Norcia PG 7 4957 5681
Visso MC 10 1107 6788
Castelsantangelo sul Nera MC 10 281 7069
Sellano PG 11 1079 8148
Cerreto di Spoleto PG 11 1075 9223
Ussita MC 13 444 9667
Cascia PG 15 3217 12884
Monte Cavallo MC 17 145 13029
Vallo di Nera PG 17 364 13393
Poggiodomo PG 18 117 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
98 Km W of Montesilvano (53738 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 1.1 2021-03-24
02:37:46
42.8492 13.0447 10 2021-03-24
02:48:36
Sala Sismica INGV-Roma 88423481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-24 02:37:46 ± 0.04
Latitude 42.8492 ± 0.0018
Longitude 13.0447 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88423481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.35074
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 88423481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-24 02:48:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHE. 2021-03-24T02:37:59.92 0.3 undecidable manual S 263 38.9277 50 0.39 67
IV.ASSB.HHZ. 2021-03-24T02:37:59.11 0.3 undecidable manual S 305 37.9287 50 -0.17 71
IV.MML1.HNZ. 2021-03-24T02:37:57.23 0.3 undecidable manual S 349 29.9478 50 0.11 73
IV.CSP1.EHZ. 2021-03-24T02:37:57.09 0.3 undecidable manual S 26 29.8479 50 -0.03 74
IV.LNSS.HNZ. 2021-03-24T02:37:56.28 0.3 undecidable manual S 181 27.3504 50 -0.16 72
IV.MMO1.EHZ. 2021-03-24T02:37:55.27 0.3 undecidable manual S 76 23.6541 50 -0.17 72
IV.CESI.HHZ. 2021-03-24T02:37:54.37 0.3 undecidable manual S 327 20.6682 117 -0.21 72
IV.GAVE.EHZ. 2021-03-24T02:37:54.61 0.3 undecidable manual S 215 21.2676 116 -0.16 73
IV.MOMA.HHE. 2021-03-24T02:37:54.16 1.0 undecidable manual P 263 38.9277 50 0.12 24
IV.ASSB.HHZ. 2021-03-24T02:37:53.80 0.3 undecidable manual P 305 37.9287 50 -0.09 72
IV.LNSS.HNZ. 2021-03-24T02:37:52.26 0.6 undecidable manual P 181 27.3504 50 0 50
IV.MML1.HNZ. 2021-03-24T02:37:52.77 0.6 undecidable manual P 349 29.9478 50 0.12 48
IV.CSP1.EHZ. 2021-03-24T02:37:52.68 0.3 undecidable manual P 26 29.8479 50 0.03 74
IV.MC2.EHZ. 2021-03-24T02:37:52.72 0.3 undecidable manual S 60 13.5753 127 0.23 73
IV.GAVE.EHZ. 2021-03-24T02:37:51.38 0.1 undecidable manual P 215 21.2676 116 0.09 99
IV.FEMA.HNZ. 2021-03-24T02:37:51.99 0.6 undecidable manual S 2 12.4764 130 -0.21 49
IV.MMO1.EHZ. 2021-03-24T02:37:51.62 0.1 undecidable manual P 76 23.6541 50 -0.06 99
IV.CESI.HHZ. 2021-03-24T02:37:51.20 0.1 undecidable manual P 327 20.6682 117 0.02 100
IV.NRCA.HHZ. 2021-03-24T02:37:50.56 0.3 undecidable manual S 107 5.8941 150 -0.14 75
IV.MC2.EHZ. 2021-03-24T02:37:50.25 0.6 undecidable manual P 60 13.5753 127 0.27 48
IT.MTCL.HGZ. 2021-03-24T02:37:50.46 0.6 undecidable manual P 347 16.4724 122 0.01 50
IV.FEMA.HNZ. 2021-03-24T02:37:49.73 1.0 undecidable manual P 2 12.4764 130 -0.08 25
IV.NRCA.HHZ. 2021-03-24T02:37:49.09 0.1 undecidable manual P 107 5.8941 150 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.3 0.00028300000000000005 0.06 AML other m 2021-03-24T02:37:50.65
IV.NRCA.HHE. ML:1.4 0.0003765226 0.08 AML other m 2021-03-24T02:37:50.90
IV.GAVE.EHN. ML:0.9 0.000057056745 0.16 AML other m 2021-03-24T02:37:54.86
IV.GAVE.EHE. ML:1.1 0.0000964 0.14 AML other m 2021-03-24T02:37:54.84
IV.NRCA.HNE. ML:1.4 0.0003582615 0.0992 AML other m 2021-03-24T02:37:50.90
IV.NRCA.HNN. ML:1.2 0.00022686315000000002 0.0704 AML other m 2021-03-24T02:37:50.65
IV.CESI.HHE. ML:0.7 0.000033263905000000006 0.16 AML other m 2021-03-24T02:37:54.66
IV.CESI.HHN. ML:0.8 0.000050913565000000004 0.2192 AML other m 2021-03-24T02:37:55.12
IV.CESI.HNE. ML:0.9 0.0000527764686 0.0608 AML other m 2021-03-24T02:37:54.66
IV.CESI.HNN. ML:1.0 0.000069680305 0.2192 AML other m 2021-03-24T02:37:55.01
IV.GAVE.HNE. ML:1.2 0.00009761474500000001 0.2096 AML other m 2021-03-24T02:37:54.74
IV.CSP1.EHE. ML:0.9 0.000033999345 0.16 AML other m 2021-03-24T02:37:57.46
IV.CSP1.EHN. ML:1.0 0.000045414194999999996 0.12 AML other m 2021-03-24T02:37:57.81
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