Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 24-03-2021 and time 20:27:07 (Italy) in region 3 km S Preci (PG)

A magnitude ML 1.4 earthquake occured in region: 3 km S Preci (PG), on

  • 24-03-2021 19:27:07 (UTC)
  • 24-03-2021 20:27:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8500, 13.0370 at 11 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.

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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 8 4957 5681
Sellano PG 10 1079 6760
Visso MC 10 1107 7867
Cerreto di Spoleto PG 10 1075 8942
Castelsantangelo sul Nera MC 11 281 9223
Ussita MC 14 444 9667
Cascia PG 15 3217 12884
Monte Cavallo MC 16 145 13029
Vallo di Nera PG 17 364 13393
Poggiodomo PG 17 117 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 inhabitants)
98 Km W of Montesilvano (53738 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 1.4 2021-03-24
19:27:07		 42.85 13.0367 11 2021-07-12
16:55:09		 Bollettino Sismico Italiano INGV 89737461
Reviewed
Rev100 		ML 1.5 2021-03-24
19:27:07		 42.8483 13.0323 11 2021-03-24
19:35:26		 Sala Sismica INGV-Roma 88437291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-24 19:27:07 ± 0.04
Latitude 42.8500 ± 0.0018
Longitude 13.0367 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89737461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 176
Semi-minor axis of confidence ellipse (meter) 173
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
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) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 31
Type of magnitude ML
Reference to an origin 89737461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-03 09:32:37

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 88437291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-24 19:35:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-03-24T19:27:26.80 0.6 undecidable manual S 318 61.7937 50 0.11 45
IV.EL6.EHZ. 2021-03-24T19:27:24.99 0.6 undecidable manual S 6 53.4021 50 0.54 41
IV.TERO.HHZ. 2021-03-24T19:27:24.17 0.6 undecidable manual S 118 52.6029 50 -0.07 46
IV.ATCC.EHZ. 2021-03-24T19:27:23.02 0.6 undecidable manual S 319 49.2174 50 -0.29 44
IV.CESX.HHE. 2021-03-24T19:27:22.23 0.6 undecidable manual S 234 45.4212 50 -0.08 47
IV.RM33.EHZ. 2021-03-24T19:27:21.26 0.6 undecidable manual S 159 40.5261 50 0.26 45
IV.MF5.EHZ. 2021-03-24T19:27:20.53 1.0 undecidable manual S 66 37.629 50 0.31 23
IV.MOMA.HHZ. 2021-03-24T19:27:20.87 0.3 undecidable manual S 262 38.3283 50 0.45 65
IV.ARRO.EHZ. 2021-03-24T19:27:20.05 0.6 undecidable manual S 216 37.3293 50 -0.09 47
IV.ASSB.HHZ. 2021-03-24T19:27:20.24 0.3 undecidable manual S 305 37.4292 50 0.07 71
IV.PF6.EHN. 2021-03-24T19:27:19.26 0.6 undecidable manual S 22 34.4433 50 -0.11 47
IV.SMA1.EHZ. 2021-03-24T19:27:19.50 0.6 undecidable manual S 135 34.4433 50 0.13 47
IV.MURB.HHZ. 2021-03-24T19:27:18.82 0.6 undecidable manual P 318 61.7937 50 0.16 44
IV.T1299.HNN. 2021-03-24T19:27:18.57 0.6 undecidable manual S 140 31.1466 50 0.06 48
IV.MTRA.EHE. 2021-03-24T19:27:18.51 0.6 undecidable manual S 109 31.0467 50 0.03 48
IV.CSP1.EHZ. 2021-03-24T19:27:18.22 0.3 undecidable manual S 27 30.1476 50 0 73
IV.MML1.HNE. 2021-03-24T19:27:17.93 0.3 undecidable manual S 350 29.748 50 -0.19 70
IV.LNSS.HHZ. 2021-03-24T19:27:17.33 0.3 undecidable manual S 179 27.4503 50 -0.18 71
IV.EL6.EHZ. 2021-03-24T19:27:17.49 0.3 undecidable manual P 6 53.4021 50 0.13 68
IV.MMO1.EHZ. 2021-03-24T19:27:16.40 0.3 undecidable manual S 77 24.2535 50 -0.25 70
IV.ATCC.EHZ. 2021-03-24T19:27:16.69 0.3 undecidable manual P 319 49.2174 50 -0.02 70
IV.TERO.HHZ. 2021-03-24T19:27:16.81 0.6 undecidable manual P 118 52.6029 50 -0.43 43
IV.CESX.HHE. 2021-03-24T19:27:16.12 0.3 undecidable manual P 234 45.4212 50 -0.01 71
IV.GAVE.EHZ. 2021-03-24T19:27:15.67 0.3 undecidable manual S 214 20.9679 50 -0.12 72
IV.RM33.EHZ. 2021-03-24T19:27:15.59 0.3 undecidable manual P 159 40.5261 50 0.22 68
IV.CESI.HHZ. 2021-03-24T19:27:15.48 0.3 undecidable manual S 328 20.2686 50 -0.12 72
IV.MF5.EHZ. 2021-03-24T19:27:15.26 0.1 undecidable manual P 66 37.629 50 0.33 89
IV.SMA1.EHZ. 2021-03-24T19:27:14.29 0.6 undecidable manual P 135 34.4433 50 -0.14 47
IV.ASSB.HHZ. 2021-03-24T19:27:14.75 0.1 undecidable manual P 305 37.4292 50 -0.14 93
IV.PF6.EHN. 2021-03-24T19:27:14.31 0.1 undecidable manual P 22 34.4433 50 -0.12 94
IV.T1299.HNN. 2021-03-24T19:27:14.08 0.1 undecidable manual P 140 31.1466 50 0.14 94
IV.MOMA.HHZ. 2021-03-24T19:27:14.93 0.3 undecidable manual P 262 38.3283 50 -0.1 70
IV.ARRO.EHZ. 2021-03-24T19:27:14.89 0.3 undecidable manual P 216 37.3293 50 0.02 72
IV.MML1.HNE. 2021-03-24T19:27:13.63 0.1 undecidable manual P 350 29.748 50 -0.07 96
IV.FEMA.HNE. 2021-03-24T19:27:13.22 0.3 undecidable manual S 5 12.4764 131 -0.2 72
IV.MC2.EHZ. 2021-03-24T19:27:13.99 0.3 undecidable manual S 61 14.1747 128 0.13 73
IV.MTRA.EHE. 2021-03-24T19:27:13.74 0.1 undecidable manual P 109 31.0467 50 -0.17 94
IV.CSP1.EHZ. 2021-03-24T19:27:13.74 0.1 undecidable manual P 27 30.1476 50 -0.02 97
IV.LNSS.HHZ. 2021-03-24T19:27:13.30 0.1 undecidable manual P 179 27.4503 50 -0.05 97
IV.CESI.HHZ. 2021-03-24T19:27:12.24 0.1 positive manual P 328 20.2686 50 -0.01 99
IV.GAVE.EHZ. 2021-03-24T19:27:12.36 0.1 positive manual P 214 20.9679 50 0 99
IV.MMO1.EHZ. 2021-03-24T19:27:12.76 0.1 positive manual P 77 24.2535 50 -0.1 96
IV.NRCA.HNZ. 2021-03-24T19:27:11.87 0.3 undecidable manual S 106 6.5934 149 -0.21 73
IV.FEMA.HNE. 2021-03-24T19:27:11.11 0.1 undecidable manual P 5 12.4764 131 0.12 98
IV.MC2.EHZ. 2021-03-24T19:27:11.40 0.1 negative manual P 61 14.1747 128 0.15 97
IV.NRCA.HNZ. 2021-03-24T19:27:10.28 0.1 negative manual P 106 6.5934 149 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.8 0.0009206045000000001 0.1024 AML other m 2021-03-24T19:27:11.92
IV.NRCA.HHN. ML:1.8 0.000993 0.08 AML other m 2021-03-24T19:27:11.93
IV.NRCA.HHE. ML:1.9 0.0011022015 0.1536 AML other m 2021-03-24T19:27:11.94
IV.NRCA.HNE. ML:1.8 0.0009680276 0.1024 AML other m 2021-03-24T19:27:12.47
IV.CESI.HHN. ML:1.5 0.000212 0.18 AML other m 2021-03-24T19:27:15.72
IV.CESI.HHE. ML:1.0 0.000079993935 0.128 AML other m 2021-03-24T19:27:15.79
IV.CESI.HNN. ML:1.4 0.00017553015 0.1536 AML other m 2021-03-24T19:27:15.83
IV.GAVE.EHN. ML:1.7 0.00034226105 0.2176 AML other m 2021-03-24T19:27:15.93
IV.GAVE.EHE. ML:1.8 0.00038349285 0.2432 AML other m 2021-03-24T19:27:16.29
IV.GAVE.HNE. ML:1.7 0.00035778085000000005 0.2176 AML other m 2021-03-24T19:27:16.38
IV.LNSS.HNE. ML:1.5 0.00017874256 0.1024 AML other m 2021-03-24T19:27:17.92
IV.LNSS.HHE. ML:1.6 0.000201 0.14 AML other m 2021-03-24T19:27:17.92
IV.LNSS.HHN. ML:1.4 0.00013800000000000002 0.32 AML other m 2021-03-24T19:27:17.80
IV.CSP1.EHN. ML:1.6 0.0002060882 0.1536 AML other m 2021-03-24T19:27:19.51
IV.CSP1.EHE. ML:1.6 0.00019201744999999997 0.1408 AML other m 2021-03-24T19:27:19.74
IV.ASSB.HHE. ML:1.2 0.000061112055 0.1792 AML other m 2021-03-24T19:27:21.55
IV.ASSB.HHN. ML:1.1 0.00004797083000000001 0.0896 AML other m 2021-03-24T19:27:21.65
IV.MF5.EHE. ML:1.5 0.00010288925 0.2176 AML other m 2021-03-24T19:27:21.71
IV.MF5.EHN. ML:1.3 0.000078810635 0.2432 AML other m 2021-03-24T19:27:21.84
IV.MOMA.HHN. ML:1.1 0.00005185 0.28 AML other m 2021-03-24T19:27:22.13
IV.MOMA.HHE. ML:1.2 0.000055 0.18 AML other m 2021-03-24T19:27:23.23
IV.TERO.HNN. ML:1.9 0.00019262509999999999 0.8192 AML other m 2021-03-24T19:27:24.53
IV.TERO.HNE. ML:1.6 0.0000906209 0.3968 AML other m 2021-03-24T19:27:24.79
IV.TERO.HHE. ML:1.2 0.000040112380000000004 0.1024 AML other m 2021-03-24T19:27:25.03
IV.TERO.HHN. ML:1.1 0.000027522465000000004 0.0768 AML other m 2021-03-24T19:27:26.04
IV.ATCC.EHE. ML:1.0 0.0000236144975 0.128 AML other m 2021-03-24T19:27:26.52
IV.EL6.EHN. ML:1.1 0.000030115004999999996 0.2176 AML other m 2021-03-24T19:27:27.74
IV.EL6.EHE. ML:1.2 0.000033937255 0.1664 AML other m 2021-03-24T19:27:27.79
IV.ATCC.EHN. ML:0.9 0.0000221460565 0.384 AML other m 2021-03-24T19:27:28.24
IV.MURB.HHE. ML:1.3 0.00004148505 0.2432 AML other m 2021-03-24T19:27:29.98
IV.MURB.HHN. ML:1.2 0.000036580639999999996 0.2688 AML other m 2021-03-24T19:27:35.51
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