Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 03-02-2021 and time 13:22:50 (UTC) in region 2 km N Castelsantangelo sul Nera (MC)

A magnitude ML 1.7 earthquake occured in region: 2 km N Castelsantangelo sul Nera (MC), on

  • 03-02-2021 13:22:50 (UTC)
  • 03-02-2021 14:22:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9140, 13.1460 at 9 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
Castelsantangelo sul Nera MC 2 281 281
Ussita MC 4 444 725
Visso MC 5 1107 1832
Preci PG 10 724 2556
Bolognola MC 11 142 2698
Acquacanina MC 13 121 2819
Fiastra MC 14 559 3378
Norcia PG 14 4957 8335
Fiordimonte MC 15 202 8537
Monte Cavallo MC 15 145 8682
Montemonaco AP 15 604 9286
Montefortino FM 16 1178 10464
Pieve Torina MC 17 1458 11922
Montegallo AP 17 523 12445
Pievebovigliana MC 17 866 13311
Sellano PG 18 1079 14390
Sarnano MC 19 3264 17654
Amandola FM 19 3629 21283
Arquata del Tronto AP 20 1178 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
65 Km E of Perugia (166134 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
93 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 1.7 2021-02-03
13:22:50		 42.9143 13.1462 9 2021-07-12
16:55:09		 Bollettino Sismico Italiano INGV 89625691
Reviewed
Rev100 		ML 1.7 2021-02-03
13:22:50		 42.9198 13.1587 9 2021-02-03
13:30:54		 Sala Sismica INGV-Roma 86810251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-03 13:22:50 ± 0.03
Latitude 42.9143 ± 0.0018
Longitude 13.1462 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89625691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 144
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.46225
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 89625691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-30 09:18:33

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 86810251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-03 13:30:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-02-03T13:23:06.10 0.6 undecidable manual S 131 49.3173 50 -0.38 43
IV.CING.HNZ. 2021-02-03T13:23:06.60 0.6 undecidable manual S 4 51.3153 50 -0.41 43
IV.MOMA.HHZ. 2021-02-03T13:23:06.50 0.6 undecidable manual S 256 48.4182 50 0.26 44
IV.CAMP.HHZ. 2021-02-03T13:23:05.70 0.3 undecidable manual S 153 47.1195 50 -0.2 67
IV.RM33.EHZ. 2021-02-03T13:23:05.60 0.3 undecidable manual S 173 45.3213 50 0.19 68
IV.EL6.EHE. 2021-02-03T13:23:05.71 0.6 undecidable manual S 356 46.2204 50 0.07 46
IV.MNTT.EHZ. 2021-02-03T13:23:04.00 0.6 undecidable manual S 66 40.0266 50 0.01 47
IV.ASSB.HHZ. 2021-02-03T13:23:04.40 0.3 undecidable manual S 290 42.0246 50 -0.14 69
IV.LNSS.HHZ. 2021-02-03T13:23:02.80 0.3 undecidable manual S 194 35.6421 50 -0.02 71
IV.SMA1.EHZ. 2021-02-03T13:23:02.30 0.6 undecidable manual S 154 35.0427 50 -0.37 44
IV.GAVE.EHZ. 2021-02-03T13:23:01.80 0.3 undecidable manual S 220 32.0457 105 -0.05 71
IV.SAP2.EHZ. 2021-02-03T13:23:01.00 0.3 undecidable manual S 45 28.8489 107 0.23 69
IV.CING.HNZ. 2021-02-03T13:23:00.05 0.3 undecidable manual P 4 51.3153 50 0.09 68
IV.MF5.EHZ. 2021-02-03T13:23:00.40 0.3 undecidable manual S 72 26.751 108 0.32 68
IV.TERO.HHZ. 2021-02-03T13:22:59.95 0.3 undecidable manual P 131 49.3173 50 0.29 66
IV.MML1.EHZ. 2021-02-03T13:22:59.60 0.3 undecidable manual S 327 26.2515 108 -0.31 68
IV.EL6.EHE. 2021-02-03T13:22:59.51 0.3 undecidable manual P 356 46.2204 50 0.34 65
IV.RM33.EHZ. 2021-02-03T13:22:59.14 0.3 undecidable manual P 173 45.3213 50 0.11 69
IV.PF6.EHZ. 2021-02-03T13:22:59.30 0.6 undecidable manual S 9 25.1526 109 -0.24 46
IV.MOMA.HHZ. 2021-02-03T13:22:59.71 0.6 undecidable manual P 256 48.4182 50 0.2 45
IV.CAMP.HHZ. 2021-02-03T13:22:59.02 0.3 undecidable manual P 153 47.1195 50 -0.29 66
IV.CESI.HHZ. 2021-02-03T13:22:58.70 0.3 undecidable manual S 297 22.0668 111 0.16 71
IV.MNTT.EHZ. 2021-02-03T13:22:58.62 0.3 undecidable manual P 66 40.0266 50 0.41 65
IV.ASSB.HHZ. 2021-02-03T13:22:58.32 0.3 undecidable manual P 290 42.0246 50 -0.21 68
IV.GUMA.HHZ. 2021-02-03T13:22:58.80 0.3 undecidable manual S 43 22.4553 111 0.11 72
IV.SMA1.EHZ. 2021-02-03T13:22:57.22 0.3 undecidable manual P 154 35.0427 50 -0.23 68
IV.CSP1.EHZ. 2021-02-03T13:22:57.70 0.3 undecidable manual S 14 20.2686 113 -0.28 70
IV.LNSS.HHZ. 2021-02-03T13:22:57.42 0.3 undecidable manual P 194 35.6421 50 -0.12 70
IV.SAP2.EHZ. 2021-02-03T13:22:56.65 0.3 undecidable manual P 45 28.8489 107 0.29 68
IV.FDMO.HHZ. 2021-02-03T13:22:56.00 0.3 undecidable manual S 341 14.3745 121 -0.15 72
IV.MF5.EHZ. 2021-02-03T13:22:56.07 0.3 undecidable manual P 72 26.751 108 0.11 71
IV.MMO1.EHZ. 2021-02-03T13:22:56.00 0.3 undecidable manual S 96 14.7741 120 -0.27 70
IV.GAVE.EHZ. 2021-02-03T13:22:56.93 0.3 undecidable manual P 220 32.0457 105 -0.05 71
IT.MTCL.HGZ. 2021-02-03T13:22:56.10 0.3 undecidable manual S 307 14.874 120 -0.19 72
IV.MML1.EHZ. 2021-02-03T13:22:55.83 0.3 undecidable manual P 327 26.2515 108 -0.03 72
IV.CESI.HHZ. 2021-02-03T13:22:55.18 0.1 undecidable manual P 297 22.0668 111 0.11 96
IV.GUMA.HHZ. 2021-02-03T13:22:55.21 0.1 positive manual P 43 22.4553 111 0.05 97
IV.PF6.EHZ. 2021-02-03T13:22:55.76 0.3 undecidable manual P 9 25.1526 109 0.11 71
IV.NRCA.HHZ. 2021-02-03T13:22:54.90 0.3 undecidable manual S 196 9.2796 133 0.16 73
IV.FEMA.HNZ. 2021-02-03T13:22:54.90 0.6 undecidable manual S 304 9.4794 133 0.12 49
IV.CSP1.EHZ. 2021-02-03T13:22:54.59 0.1 undecidable manual P 14 20.2686 113 -0.15 95
IV.FEMA.HNZ. 2021-02-03T13:22:53.15 0.3 undecidable manual P 304 9.4794 133 0.25 71
IV.MMO1.EHZ. 2021-02-03T13:22:53.68 0.1 positive manual P 96 14.7741 120 -0.08 98
IV.NRCA.HHZ. 2021-02-03T13:22:53.14 0.1 positive manual P 196 9.2796 133 0.26 95
IT.MTCL.HGZ. 2021-02-03T13:22:53.78 0.1 undecidable manual P 307 14.874 120 0.01 99
IV.FDMO.HHZ. 2021-02-03T13:22:53.72 0.3 undecidable manual P 341 14.3745 121 0.03 74
IV.MC2.EHZ. 2021-02-03T13:22:53.19 0.3 undecidable manual S 95 3.4965 158 -0.38 70
IV.MC2.EHZ. 2021-02-03T13:22:52.15 0.1 undecidable manual P 95 3.4965 158 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.0 0.0012587765000000002 0.16 AML other m 2021-02-03T13:22:55.02
IV.NRCA.HNN. ML:0.0 0.0011598950000000002 0.1728 AML other m 2021-02-03T13:22:55.11
IV.NRCA.HNE. ML:0.0 0.001432975 0.1408 AML other m 2021-02-03T13:22:55.88
IV.NRCA.HHE. ML:0.0 0.0015208465000000001 0.1408 AML other m 2021-02-03T13:22:55.87
IV.CSP1.EHN. ML:0.0 0.0006998434 0.3392 AML other m 2021-02-03T13:22:57.97
IV.CSP1.EHE. ML:0.0 0.0006372105 0.32 AML other m 2021-02-03T13:22:59.41
IV.FDMO.HHN. ML:0.0 0.00033299999999999996 0.22 AML other m 2021-02-03T13:22:58.72
IV.FDMO.HHE. ML:0.0 0.0002366461 0.224 AML other m 2021-02-03T13:22:58.81
IV.CESI.HHE. ML:0.0 0.0002602551 0.416 AML other m 2021-02-03T13:22:58.93
IV.CESI.HHN. ML:0.0 0.00052144135 0.2176 AML other m 2021-02-03T13:22:59.04
IV.GUMA.HHE. ML:0.0 0.0008971282 0.3008 AML other m 2021-02-03T13:22:59.07
IV.GUMA.HNN. ML:0.0 0.00076527185 0.4416 AML other m 2021-02-03T13:23:00.56
IV.GUMA.HNE. ML:0.0 0.0006342642 0.4096 AML other m 2021-02-03T13:22:59.76
IV.GUMA.HHN. ML:0.0 0.0008520569 0.48 AML other m 2021-02-03T13:23:00.33
IV.MF5.EHE. ML:0.0 0.00014426785 0.1792 AML other m 2021-02-03T13:23:01.36
IV.SAP2.EHE. ML:0.0 0.00022134335 0.1408 AML other m 2021-02-03T13:23:02.26
IV.GAVE.EHE. ML:0.0 0.00031131515 0.16 AML other m 2021-02-03T13:23:02.55
IV.MF5.EHN. ML:0.0 0.0001389039 0.3584 AML other m 2021-02-03T13:23:02.81
IV.GAVE.EHN. ML:0.0 0.00039195935000000006 0.16 AML other m 2021-02-03T13:23:03.23
IV.LNSS.HHE. ML:0.0 0.00018408855000000003 0.1344 AML other m 2021-02-03T13:23:03.22
IV.SAP2.EHN. ML:0.0 0.001278664 0.1344 AML other m 2021-02-03T13:23:03.99
IV.LNSS.HHN. ML:0.0 0.0002308184 0.1216 AML other m 2021-02-03T13:23:04.14
IV.ASSB.HHN. ML:0.0 0.00014104735 0.16 AML other m 2021-02-03T13:23:04.99
IV.CAMP.HHN. ML:0.0 0.000058709990000000005 0.2176 AML other m 2021-02-03T13:23:06.13
IV.ASSB.HHE. ML:0.0 0.00010325986 0.0768 AML other m 2021-02-03T13:23:06.19
IV.CAMP.HHE. ML:0.0 0.000046697175 0.16 AML other m 2021-02-03T13:23:06.60
IV.SMA1.EHE. ML:0.0 0.00008309988999999999 0.3392 AML other m 2021-02-03T13:23:07.04
IV.TERO.HHN. ML:0.0 0.000080529245 0.1024 AML other m 2021-02-03T13:23:06.75
IV.RM33.EHE. ML:0.0 0.00008804718 0.1792 AML other m 2021-02-03T13:23:07.30
IV.RM33.EHN. ML:0.0 0.00007368522499999999 0.1792 AML other m 2021-02-03T13:23:07.97
IV.TERO.HHE. ML:0.0 0.00006971232 0.16 AML other m 2021-02-03T13:23:07.92
IV.MOMA.HHN. ML:0.0 0.000085860365 0.2176 AML other m 2021-02-03T13:23:07.86
IV.MOMA.HHE. ML:0.0 0.00010515885999999999 0.16 AML other m 2021-02-03T13:23:09.56
IV.SMA1.EHN. ML:0.0 0.00007931577 0.2368 AML other m 2021-02-03T13:23:03.28
IV.CESI.HNE. ML:1.5 0.00023492975 0.4096 AML other m 2021-02-03T13:22:58.93
IV.GAVE.HNE. ML:1.8 0.00032170935 0.16 AML other m 2021-02-03T13:23:02.54
IV.GAVE.HNN. ML:1.5 0.00014557844999999999 0.7872 AML other m 2021-02-03T13:23:01.56
IV.LNSS.HNN. ML:1.7 0.0002201804 0.1216 AML other m 2021-02-03T13:23:04.14
IV.LNSS.HNE. ML:1.6 0.000180393825 0.1408 AML other m 2021-02-03T13:23:03.44
IV.MNTT.EHN. ML:2.0 0.0003136856 0.2624 AML other m 2021-02-03T13:23:10.15
IV.MNTT.EHE. ML:2.1 0.00044797580000000004 0.0832 AML other m 2021-02-03T13:23:07.58
IV.RM33.HNN. ML:1.6 0.000102983355 0.2048 AML other m 2021-02-03T13:23:08.06
IV.MOMA.HNE. ML:1.7 0.00013796744999999998 0.1856 AML other m 2021-02-03T13:23:09.65
IV.TERO.HNE. ML:1.5 0.00008325850000000002 0.2496 AML other m 2021-02-03T13:23:07.92
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