Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 15-04-2021 and time 16:02:49 (UTC) in region 2 km N Sarnano (MC)

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

  • 15-04-2021 16:02:49 (UTC)
  • 15-04-2021 18:02:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0560, 13.3030 at 24 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
Sarnano MC 2 3264 3264
Gualdo MC 3 815 4079
San Ginesio MC 6 3498 7577
Cessapalombo MC 7 512 8089
Sant'Angelo in Pontano MC 9 1436 9525
Camporotondo di Fiastrone MC 9 563 10088
Bolognola MC 9 142 10230
Amandola FM 9 3629 13859
Penna San Giovanni MC 10 1108 14967
Acquacanina MC 11 121 15088
Caldarola MC 11 1823 16911
Ripe San Ginesio MC 11 852 17763
Monte San Martino MC 12 765 18528
Fiastra MC 12 559 19087
Colmurano MC 13 1263 20350
Montefortino FM 13 1178 21528
Smerillo FM 13 365 21893
Belforte del Chienti MC 13 1886 23779
Comunanza AP 14 3166 26945
Montefalcone Appennino FM 15 424 27369
Falerone FM 15 3337 30706
Loro Piceno MC 15 2401 33107
Servigliano FM 16 2336 35443
Santa Vittoria in Matenano FM 16 1330 36773
Serrapetrona MC 16 966 37739
Montappone FM 16 1682 39421
Monte Vidon Corrado FM 17 731 40152
Urbisaglia MC 17 2628 42780
Tolentino MC 17 20069 62849
Fiordimonte MC 17 202 63051
Montemonaco AP 17 604 63655
Massa Fermana FM 18 963 64618
Pievebovigliana MC 18 866 65484
Ussita MC 18 444 65928
Monteleone di Fermo FM 19 395 66323
Force AP 19 1354 67677
Montelparo FM 19 778 68455
Belmonte Piceno FM 20 646 69101

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
65 Km S of Ancona (100861 inhabitants)
74 Km E of Perugia (166134 inhabitants)
77 Km NE of Terni (111501 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 inhabitants)
100 Km SE of Pesaro (94582 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 2021-04-15
16:02:49		 43.0563 13.3028 24 2021-07-12
16:55:11		 Bollettino Sismico Italiano INGV 90201161
Reviewed
Rev100 		ML 1.7 2021-04-15
16:02:49		 43.0593 13.2985 23 2021-04-15
16:13:19		 Sala Sismica INGV-Roma 89121801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-15 16:02:49 ± 0.08
Latitude 43.0563 ± 0.0027
Longitude 13.3028 ± 0.0049
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90201161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 432
Semi-minor axis of confidence ellipse (meter) 119
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
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 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.73565
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 89121801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-15 16:13:19

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 49
Type of magnitude ML
Reference to an origin 90201161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-17 15:47:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2021-04-15T16:03:09.49 0.3 undecidable manual S 187 61.0944 104 0.35 65
IV.SSFR.HHZ. 2021-04-15T16:03:09.38 0.6 undecidable manual S 315 59.5959 105 0.65 40
IV.ATCC.EHZ. 2021-04-15T16:03:08.30 0.6 undecidable manual S 285 55.5 106 0.6 41
IV.TERO.HHZ. 2021-04-15T16:03:07.68 1.0 undecidable manual S 153 54.0015 107 0.39 22
IV.GAVE.EHZ. 2021-04-15T16:03:07.33 0.6 undecidable manual S 220 52.3032 107 0.46 43
IV.LNSS.HHZ. 2021-04-15T16:03:07.16 0.3 undecidable manual S 203 54.6009 106 -0.31 66
IV.T1299.HNN. 2021-04-15T16:03:06.08 0.6 undecidable manual S 182 46.8198 110 0.59 42
IV.SMA1.EHZ. 2021-04-15T16:03:05.84 0.3 undecidable manual S 177 47.3193 109 0.24 68
IV.PIEI.HHZ. 2021-04-15T16:03:04.26 0.3 undecidable manual P 311 81.6516 100 0.15 65
IV.CING.HHE. 2021-04-15T16:03:03.21 0.3 undecidable manual S 346 36.4413 116 0.28 68
IV.CESI.HHZ. 2021-04-15T16:03:02.44 0.3 undecidable manual S 260 32.8449 119 0.38 68
IV.FRON.EHZ. 2021-04-15T16:03:02.30 0.6 undecidable manual P 318 69.1752 102 0.07 45
IV.MTRA.EHZ. 2021-04-15T16:03:02.28 0.3 undecidable manual S 167 34.1436 118 -0.08 72
IV.MURB.HHZ. 2021-04-15T16:03:02.16 0.3 undecidable manual P 290 66.9774 103 0.26 66
IV.EL6.EHZ. 2021-04-15T16:03:02.70 0.3 undecidable manual S 332 34.3434 118 0.27 69
IV.MML1.HNE. 2021-04-15T16:03:01.01 0.3 undecidable manual S 283 27.5502 124 0.14 72
IV.NRCA.HHZ. 2021-04-15T16:03:01.17 0.3 undecidable manual S 212 29.0487 123 -0.03 73
IV.MOMA.HHZ. 2021-04-15T16:03:01.76 0.1 undecidable manual P 245 65.7897 103 0.05 92
IV.LNSS.HHZ. 2021-04-15T16:03:00.00 0.1 negative manual P 203 54.6009 106 -0.06 92
IT.MTCL.HGZ. 2021-04-15T16:03:00.48 0.6 undecidable manual S 254 25.5522 127 0.05 49
IV.RM33.EHZ. 2021-04-15T16:03:00.83 0.1 undecidable manual P 187 61.0944 104 -0.19 89
IV.ATCC.EHZ. 2021-04-15T16:03:00.14 0.1 negative manual P 285 55.5 106 -0.05 92
IV.FEMA.HNE. 2021-04-15T16:03:00.17 0.6 undecidable manual S 243 23.0547 130 0.27 47
IV.SSFR.HHZ. 2021-04-15T16:03:00.92 0.1 undecidable manual P 315 59.5959 105 0.14 91
IV.ARVD.HHZ. 2021-04-15T16:03:00.39 0.1 undecidable manual P 329 56.9985 106 -0.02 93
IV.MC2.EHZ. 2021-04-15T16:02:59.10 0.3 undecidable manual S 210 18.5703 137 0.07 74
IV.GAVE.EHZ. 2021-04-15T16:02:59.77 0.1 undecidable manual P 220 52.3032 107 0.06 94
IV.MDAR.HNN. 2021-04-15T16:02:59.02 0.6 undecidable manual S 319 19.9689 135 -0.27 47
IV.SSM1.HNE. 2021-04-15T16:02:59.45 0.6 undecidable manual S 332 21.6672 132 -0.18 48
IV.TERO.HHZ. 2021-04-15T16:02:59.75 0.3 undecidable manual P 153 54.0015 107 -0.21 68
IV.FDMO.HHZ. 2021-04-15T16:02:58.50 0.3 undecidable manual S 263 17.5713 139 -0.37 70
IV.MMO1.EHZ. 2021-04-15T16:02:58.64 0.3 undecidable manual S 174 17.5713 139 -0.21 73
IV.SMA1.EHZ. 2021-04-15T16:02:58.70 0.1 positive manual P 177 47.3193 109 -0.28 90
IV.T1299.HNN. 2021-04-15T16:02:58.89 0.3 undecidable manual P 182 46.8198 110 -0.02 71
IV.MF5.EHZ. 2021-04-15T16:02:58.77 0.3 undecidable manual S 121 14.7741 144 0.37 69
IV.SAP2.EHZ. 2021-04-15T16:02:57.76 0.3 undecidable manual S 60 8.9799 157 0.14 73
IV.EL6.EHZ. 2021-04-15T16:02:57.01 0.1 undecidable manual P 332 34.3434 118 -0.14 95
IV.PF6.EHN. 2021-04-15T16:02:57.56 0.3 undecidable manual S 316 12.5763 148 -0.51 69
IV.CING.HHE. 2021-04-15T16:02:57.29 0.1 undecidable manual P 346 36.4413 116 -0.15 94
IV.CSP1.EHZ. 2021-04-15T16:02:57.36 0.6 undecidable manual S 296 8.88 157 -0.25 49
IV.MML1.HNE. 2021-04-15T16:02:56.17 0.1 negative manual P 283 27.5502 124 -0.08 97
IV.NRCA.HHZ. 2021-04-15T16:02:56.28 0.1 positive manual P 212 29.0487 123 -0.16 95
IV.CESI.HHZ. 2021-04-15T16:02:56.92 0.1 negative manual P 260 32.8449 119 -0.01 97
IV.MNTT.EHZ. 2021-04-15T16:02:56.23 0.6 undecidable manual P 88 23.754 129 0.46 45
IV.MTRA.EHZ. 2021-04-15T16:02:56.94 0.6 undecidable manual P 167 34.1436 118 -0.17 47
IV.MC2.EHZ. 2021-04-15T16:02:55.18 0.3 positive manual P 210 18.5703 137 -0.01 75
IV.MDAR.HNN. 2021-04-15T16:02:55.25 0.6 undecidable manual P 319 19.9689 135 -0.09 49
IT.MTCL.HGZ. 2021-04-15T16:02:55.82 0.3 undecidable manual P 254 25.5522 127 -0.17 71
IV.FEMA.HNE. 2021-04-15T16:02:55.78 0.1 undecidable manual P 243 23.0547 130 0.09 98
IV.SSM1.HNE. 2021-04-15T16:02:55.37 0.3 undecidable manual P 332 21.6672 132 -0.16 73
IV.CSP1.EHZ. 2021-04-15T16:02:54.17 0.1 undecidable manual P 296 8.88 157 -0.19 98
IV.MF5.EHZ. 2021-04-15T16:02:54.99 0.1 negative manual P 121 14.7741 144 0.17 97
IV.SAP2.EHZ. 2021-04-15T16:02:54.43 0.1 undecidable manual P 60 8.9799 157 0.06 100
IV.PF6.EHN. 2021-04-15T16:02:54.31 0.1 undecidable manual P 316 12.5763 148 -0.32 95
IV.FDMO.HHZ. 2021-04-15T16:02:54.81 1.0 undecidable manual P 263 17.5713 139 -0.28 24
IV.MMO1.EHZ. 2021-04-15T16:02:54.88 0.6 undecidable manual P 174 17.5713 139 -0.2 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:2.1 0.0007743556499999999 0.0768 AML other m 2021-04-15T16:02:57.48
IV.CSP1.EHE. ML:2.2 0.0009695 0.08 AML other m 2021-04-15T16:02:57.51
IV.SAP2.EHE. ML:1.6 0.00027375654999999997 0.2048 AML other m 2021-04-15T16:02:58.78
IV.FDMO.HHE. ML:1.7 0.000282 0.12 AML other m 2021-04-15T16:02:58.93
IV.MF5.EHN. ML:2.0 0.0005600000000000001 1.78 AML other m 2021-04-15T16:02:58.07
IV.MF5.EHE. ML:1.9 0.00043231015 0.1408 AML other m 2021-04-15T16:02:59.04
IV.FDMO.HHN. ML:1.6 0.00022400000000000002 1.22 AML other m 2021-04-15T16:02:59.77
IV.SAP2.EHN. ML:2.4 0.0018025915 0.2176 AML other m 2021-04-15T16:03:00.20
IV.MNTT.EHN. ML:2.2 0.000716 0.12 AML other m 2021-04-15T16:03:01.79
IV.MNTT.EHE. ML:2.6 0.001822359 0.1024 AML other m 2021-04-15T16:03:01.98
IV.NRCA.HHE. ML:2.1 0.0004495848 0.1536 AML other m 2021-04-15T16:03:02.27
IV.NRCA.HNE. ML:2.1 0.00044973245 0.1408 AML other m 2021-04-15T16:03:02.27
IV.NRCA.HNN. ML:2.1 0.0005369999999999999 0.14 AML other m 2021-04-15T16:03:02.52
IV.NRCA.HHN. ML:2.2 0.000565 0.14 AML other m 2021-04-15T16:03:02.45
IV.CESI.HNE. ML:1.6 0.00013562646 0.2688 AML other m 2021-04-15T16:03:02.73
IV.MTRA.EHE. ML:1.4 0.000090932675 0.3456 AML other m 2021-04-15T16:03:02.63
IV.MTRA.HNN. ML:1.5 0.00011363774000000001 0.2944 AML other m 2021-04-15T16:03:02.83
IV.CESI.HHE. ML:1.6 0.0001418729 0.1792 AML other m 2021-04-15T16:03:02.86
IV.CESI.HHN. ML:1.8 0.00020500000000000002 0.14 AML other m 2021-04-15T16:03:03.09
IV.CESI.HNN. ML:1.7 0.00019098225 0.1536 AML other m 2021-04-15T16:03:03.10
IV.EL6.EHN. ML:1.8 0.00019127575 0.0896 AML other m 2021-04-15T16:03:03.41
IV.MTRA.EHN. ML:1.4 0.00009011951999999999 0.192 AML other m 2021-04-15T16:03:04.19
IV.EL6.EHE. ML:1.8 0.00022453215 0.128 AML other m 2021-04-15T16:03:04.44
IV.SMA1.EHE. ML:1.4 0.000070202005 1.6672 AML other m 2021-04-15T16:03:05.01
IV.SMA1.EHN. ML:1.4 0.00005285 0.34 AML other m 2021-04-15T16:03:06.03
IV.GAVE.EHN. ML:1.9 0.000180586835 0.2688 AML other m 2021-04-15T16:03:07.60
IV.GAVE.EHE. ML:2.0 0.00024957415 0.256 AML other m 2021-04-15T16:03:07.58
IV.GAVE.HNE. ML:2.0 0.00022620205000000002 1.8208 AML other m 2021-04-15T16:03:07.97
IV.LNSS.HHE. ML:1.4 0.00005455768499999999 0.1536 AML other m 2021-04-15T16:03:08.68
IV.ARVD.HHE. ML:1.2 0.0000368 0.48 AML other m 2021-04-15T16:03:09.40
IV.ATCC.EHE. ML:1.6 0.00007544999999999999 0.16 AML other m 2021-04-15T16:03:09.65
IV.ATCC.EHN. ML:1.5 0.0000665 0.7 AML other m 2021-04-15T16:03:09.93
IV.TERO.HHN. ML:1.3 0.000039478744999999995 0.0768 AML other m 2021-04-15T16:03:09.59
IV.TERO.HHE. ML:1.2 0.000028508405 0.1664 AML other m 2021-04-15T16:03:09.77
IV.LNSS.HHN. ML:1.5 0.00007000000000000001 0.24 AML other m 2021-04-15T16:03:10.02
IV.SSFR.HHE. ML:2.0 0.0002165 0.28 AML other m 2021-04-15T16:03:10.42
IV.ARVD.HHN. ML:1.4 0.000042999999999999995 0.18 AML other m 2021-04-15T16:03:10.54
IV.SSFR.HNE. ML:2.1 0.00022681295 0.1536 AML other m 2021-04-15T16:03:10.50
IV.SSFR.HHN. ML:2.0 0.00017600074999999998 0.1536 AML other m 2021-04-15T16:03:10.76
IV.RM33.EHE. ML:1.4 0.000048549999999999994 0.14 AML other m 2021-04-15T16:03:10.96
IV.RM33.EHN. ML:1.3 0.000040119799999999995 0.2432 AML other m 2021-04-15T16:03:11.07
IV.MOMA.HHN. ML:1.8 0.000112 0.22 AML other m 2021-04-15T16:03:11.62
IV.MOMA.HHE. ML:1.8 0.00011449999999999999 0.16 AML other m 2021-04-15T16:03:12.39
IV.MURB.HHN. ML:1.9 0.0001435 1.26 AML other m 2021-04-15T16:03:13.72
IV.MURB.HHE. ML:1.9 0.000146 1.46 AML other m 2021-04-15T16:03:13.94
IV.FRON.EHE. ML:1.4 0.0000451 0.52 AML other m 2021-04-15T16:03:13.57
IV.FRON.EHN. ML:1.6 0.000067 0.74 AML other m 2021-04-15T16:03:14.57
IV.PIEI.HHN. ML:1.4 0.0000355 1.42 AML other m 2021-04-15T16:03:16.99
IV.PIEI.HHE. ML:1.6 0.000053500000000000006 0.72 AML other m 2021-04-15T16:03:17.13
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