Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 15-03-2021 and time 08:00:59 (Italy) in region 3 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 1.7 earthquake occured in region: 3 km NE Castelsantangelo sul Nera (MC), on

  • 15-03-2021 07:00:59 (UTC)
  • 15-03-2021 08:00:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9210, 13.1690 at 16 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 3 281 281
Ussita MC 4 444 725
Visso MC 7 1107 1832
Bolognola MC 10 142 1974
Preci PG 12 724 2698
Acquacanina MC 12 121 2819
Fiastra MC 13 559 3378
Montemonaco AP 13 604 3982
Montefortino FM 14 1178 5160
Fiordimonte MC 14 202 5362
Norcia PG 16 4957 10319
Monte Cavallo MC 16 145 10464
Montegallo AP 16 523 10987
Amandola FM 17 3629 14616
Pieve Torina MC 17 1458 16074
Sarnano MC 17 3264 19338
Pievebovigliana MC 17 866 20204
Arquata del Tronto AP 20 1178 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 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 2021-03-15
07:00:59		 42.9213 13.1688 16 2021-07-12
16:55:15		 Bollettino Sismico Italiano INGV 91488791
Reviewed
Rev100 		ML 1.9 2021-03-15
07:01:00		 42.9172 13.173 15 2021-03-15
07:07:58		 Sala Sismica INGV-Roma 88147811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-15 07:00:59 ± 0.06
Latitude 42.9213 ± 0.0027
Longitude 13.1688 ± 0.0049
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91488791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 73
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 88147811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-15 07:07:58

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 33
Type of magnitude ML
Reference to an origin 91488791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-18 10:21:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2021-03-15T07:01:40.71 3.0 undecidable manual S 0.21 0
TV.SF04.EHZ. 2021-03-15T07:01:23.52 3.0 positive manual P 2.94 0
IV.SSFR.HHZ. 2021-03-15T07:01:20.54 0.6 undecidable manual S 331 65.0904 95 0.68 38
IV.MOMA.HHZ. 2021-03-15T07:01:16.96 0.6 undecidable manual S 255 50.4162 97 1 34
IV.ATCC.EHZ. 2021-03-15T07:01:16.56 0.6 undecidable manual S 304 51.9036 97 0.21 44
IV.RM33.EHZ. 2021-03-15T07:01:15.19 0.6 undecidable manual S 175 45.9207 98 0.43 43
IV.TERO.HHZ. 2021-03-15T07:01:15.72 0.6 undecidable manual S 133 48.5181 97 0.27 45
IV.EL6.EHZ. 2021-03-15T07:01:15.50 0.6 undecidable manual S 353 45.621 98 0.82 37
IV.LNSS.HHZ. 2021-03-15T07:01:12.75 0.6 undecidable manual S 197 36.8298 101 0.37 44
IV.GAVE.EHZ. 2021-03-15T07:01:11.81 0.6 undecidable manual S 221 33.8439 102 0.22 46
IV.SSFR.HHZ. 2021-03-15T07:01:11.24 0.3 undecidable manual P 331 65.0904 95 -0.22 65
IV.SAP2.EHE. 2021-03-15T07:01:10.35 0.6 undecidable manual S 44 26.9508 107 0.54 43
IV.MF5.EHZ. 2021-03-15T07:01:10.00 0.6 undecidable manual S 73 24.753 109 0.75 40
IV.MDAR.HNN. 2021-03-15T07:01:10.55 0.6 undecidable manual S 356 30.1476 104 -0.09 48
IV.ATCC.EHZ. 2021-03-15T07:01:09.42 0.3 undecidable manual P 304 51.9036 97 -0.01 70
IV.MOMA.HHZ. 2021-03-15T07:01:09.37 0.3 undecidable manual P 255 50.4162 97 0.17 68
IV.MML1.HNE. 2021-03-15T07:01:09.68 0.6 undecidable manual S 323 26.6511 107 -0.05 49
IV.MTRA.EHZ. 2021-03-15T07:01:09.39 0.6 undecidable manual S 135 26.0517 108 -0.18 47
IV.GUMA.HHZ. 2021-03-15T07:01:08.60 0.6 undecidable manual S 41 20.6682 114 0.36 46
IV.EL6.EHZ. 2021-03-15T07:01:08.15 0.3 undecidable manual P 353 45.621 98 -0.31 66
IV.RM33.EHZ. 2021-03-15T07:01:08.34 0.3 undecidable manual P 175 45.9207 98 -0.17 68
IV.PF6.EHN. 2021-03-15T07:01:08.73 0.6 undecidable manual S 5 24.0537 110 -0.35 46
IV.CESI.HHZ. 2021-03-15T07:01:08.99 0.6 undecidable manual S 293 23.3544 111 0.09 48
IV.TERO.HHZ. 2021-03-15T07:01:08.68 0.3 undecidable manual P 133 48.5181 97 -0.23 67
IV.CSP1.EHZ. 2021-03-15T07:01:07.68 0.3 undecidable manual S 9 19.1697 117 -0.19 72
IV.LNSS.HHZ. 2021-03-15T07:01:07.00 0.3 undecidable manual P 197 36.8298 101 -0.14 70
IV.MMO1.EHN. 2021-03-15T07:01:06.31 0.6 undecidable manual S 101 13.0758 131 -0.21 48
IV.FEMA.HNZ. 2021-03-15T07:01:06.12 0.6 undecidable manual S 295 10.6782 138 0.06 49
IV.GAVE.EHZ. 2021-03-15T07:01:06.65 0.3 undecidable manual P 221 33.8439 102 -0.03 71
IT.MTCL.HGZ. 2021-03-15T07:01:06.90 0.6 undecidable manual S 300 15.9729 124 -0.23 48
IV.MC2.EHZ. 2021-03-15T07:01:05.29 0.3 undecidable manual S 124 1.998 171 0.24 72
IV.MML1.HNE. 2021-03-15T07:01:05.37 0.1 undecidable manual P 323 26.6511 107 -0.24 93
IV.MTRA.EHZ. 2021-03-15T07:01:05.28 0.3 undecidable manual P 135 26.0517 108 -0.23 69
IV.NRCA.HNZ. 2021-03-15T07:01:05.90 0.3 undecidable manual S 204 10.6782 138 -0.17 73
IV.SAP2.EHE. 2021-03-15T07:01:05.80 0.3 undecidable manual P 44 26.9508 107 0.15 71
IV.MF5.EHZ. 2021-03-15T07:01:05.49 0.1 undecidable manual P 73 24.753 109 0.16 95
IV.MDAR.HNN. 2021-03-15T07:01:05.85 0.6 undecidable manual P 356 30.1476 104 -0.28 46
IV.CESI.HHZ. 2021-03-15T07:01:05.05 0.1 negative manual P 293 23.3544 111 -0.08 97
IV.GUMA.HHZ. 2021-03-15T07:01:04.77 0.1 undecidable manual P 41 20.6682 114 0.02 98
IV.CSP1.EHZ. 2021-03-15T07:01:04.35 0.1 undecidable manual P 9 19.1697 117 -0.18 95
IV.PF6.EHN. 2021-03-15T07:01:04.89 0.1 undecidable manual P 5 24.0537 110 -0.34 91
IT.MTCL.HGZ. 2021-03-15T07:01:03.92 0.1 undecidable manual P 300 15.9729 124 -0.19 96
IV.NRCA.HNZ. 2021-03-15T07:01:03.40 0.1 negative manual P 204 10.6782 138 -0.09 98
IV.MMO1.EHN. 2021-03-15T07:01:03.59 0.1 undecidable manual P 101 13.0758 131 -0.16 96
IV.FEMA.HNZ. 2021-03-15T07:01:03.46 0.3 undecidable manual P 295 10.6782 138 -0.03 75
IV.MC2.EHZ. 2021-03-15T07:01:02.97 0.1 undecidable manual P 124 1.998 171 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.1 0.00128 0.8 AML other m 2021-03-15T07:01:05.95
IV.NRCA.HHN. ML:2.1 0.001295 1.88 AML other m 2021-03-15T07:01:05.95
IV.NRCA.HHE. ML:2.2 0.001375 1.86 AML other m 2021-03-15T07:01:06.97
IV.NRCA.HNE. ML:2.2 0.001305 1.86 AML other m 2021-03-15T07:01:06.97
IV.CSP1.EHN. ML:1.9 0.000576 1.42 AML other m 2021-03-15T07:01:08.04
IV.CSP1.EHE. ML:1.9 0.0005074999999999999 1.62 AML other m 2021-03-15T07:01:08.07
IV.GUMA.HHE. ML:1.9 0.0004625 0.22 AML other m 2021-03-15T07:01:08.88
IV.CESI.HHN. ML:2.0 0.0005380000000000001 0.14 AML other m 2021-03-15T07:01:09.31
IV.CESI.HHE. ML:1.8 0.0003445 0.42 AML other m 2021-03-15T07:01:09.34
IV.MTRA.EHE. ML:1.6 0.000217 0.94 AML other m 2021-03-15T07:01:10.83
IV.MTRA.EHN. ML:1.6 0.00019350000000000001 0.4 AML other m 2021-03-15T07:01:10.43
IV.GUMA.HHN. ML:1.6 0.00026472744999999997 0.2208 AML other m 2021-03-15T07:01:09.88
IV.GAVE.EHE. ML:1.9 0.0003415 0.6 AML other m 2021-03-15T07:01:12.04
IV.GAVE.EHN. ML:1.8 0.0002405 0.2 AML other m 2021-03-15T07:01:12.17
IV.LNSS.HHE. ML:1.8 0.0002395 0.98 AML other m 2021-03-15T07:01:13.65
IV.LNSS.HHN. ML:1.8 0.000254 0.3 AML other m 2021-03-15T07:01:13.86
IV.SSFR.HHN. ML:1.8 0.0001095 1.26 AML other m 2021-03-15T07:01:21.05
IV.SSFR.HHE. ML:1.8 0.0001205 0.2 AML other m 2021-03-15T07:01:21.28
IV.FEMA.HNE. ML:1.7 0.0004173678 0.2496 AML other m 2021-03-15T07:01:08.22
IV.FEMA.HNN. ML:1.6 0.00034057925 0.0896 AML other m 2021-03-15T07:01:06.44
IV.CESI.HNE. ML:1.6 0.00022864540499999998 0.2208 AML other m 2021-03-15T07:01:09.14
IV.CESI.HNN. ML:2.0 0.0005142106 0.128 AML other m 2021-03-15T07:01:09.25
IV.MTRA.HNE. ML:1.6 0.00018720785 0.2016 AML other m 2021-03-15T07:01:09.83
IV.GAVE.HNE. ML:1.8 0.0002815758 0.24 AML other m 2021-03-15T07:01:12.46
IV.EL6.EHE. ML:1.5 0.000086500865 0.2176 AML other m 2021-03-15T07:01:18.74
IV.RM33.EHE. ML:1.5 0.00008568397999999999 0.16 AML other m 2021-03-15T07:01:16.99
IV.RM33.EHN. ML:1.3 0.000058019009999999995 0.16 AML other m 2021-03-15T07:01:16.85
IV.TERO.HHE. ML:1.4 0.00006715818 0.1376 AML other m 2021-03-15T07:01:16.35
IV.TERO.HHN. ML:1.4 0.0000683989 0.08 AML other m 2021-03-15T07:01:16.16
IV.MOMA.HHE. ML:1.5 0.00007646968 0.2176 AML other m 2021-03-15T07:01:18.08
IV.MOMA.HHN. ML:1.2 0.00003940381 0.16 AML other m 2021-03-15T07:01:18.49
IV.ATCC.EHN. ML:1.4 0.00005759111999999999 0.2592 AML other m 2021-03-15T07:01:17.23
IV.ATCC.EHE. ML:1.5 0.00007361434 0.1824 AML other m 2021-03-15T07:01:17.19
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