Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 21-05-2015 and time 04:54:36 (UTC) in region 1 km NW Sarnano (MC)

A magnitude ML 2.1 earthquake occured in region: 1 km NW Sarnano (MC), on

  • 21-05-2015 04:54:36 (UTC)
  • 21-05-2015 06:54:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0460, 13.2980 at 23 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 1 3264 3264
Gualdo MC 4 815 4079
San Ginesio MC 7 3498 7577
Cessapalombo MC 8 512 8089
Bolognola MC 8 142 8231
Amandola FM 9 3629 11860
Camporotondo di Fiastrone MC 10 563 12423
Sant'Angelo in Pontano MC 10 1436 13859
Acquacanina MC 10 121 13980
Penna San Giovanni MC 10 1108 15088
Fiastra MC 12 559 15647
Monte San Martino MC 12 765 16412
Caldarola MC 12 1823 18235
Montefortino FM 12 1178 19413
Ripe San Ginesio MC 12 852 20265
Smerillo FM 13 365 20630
Comunanza AP 14 3166 23796
Colmurano MC 14 1263 25059
Belforte del Chienti MC 14 1886 26945
Montefalcone Appennino FM 15 424 27369
Falerone FM 16 3337 30706
Servigliano FM 16 2336 33042
Montemonaco AP 16 604 33646
Santa Vittoria in Matenano FM 17 1330 34976
Loro Piceno MC 17 2401 37377
Fiordimonte MC 17 202 37579
Serrapetrona MC 17 966 38545
Ussita MC 17 444 38989
Montappone FM 17 1682 40671
Monte Vidon Corrado FM 17 731 41402
Pievebovigliana MC 17 866 42268
Urbisaglia MC 18 2628 44896
Tolentino MC 18 20069 64965
Force AP 18 1354 66319
Massa Fermana FM 19 963 67282
Monteleone di Fermo FM 19 395 67677
Montelparo FM 20 778 68455

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
66 Km S of Ancona (100861 inhabitants)
74 Km E of Perugia (166134 inhabitants)
76 Km NE of Terni (111501 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
92 Km S of Fano (60888 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 2.1 2015-05-21
04:54:36		 43.0463 13.2978 23 2016-01-08
08:44:50		 Bollettino Sismico Italiano INGV 19330781
Reviewed
Rev100 		ML 2.2 2015-05-21
04:54:36		 43.035 13.3148 25 2015-05-21
05:04:24		 Sala Sismica INGV-Roma 19253291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-05-21 04:54:36 ± 0.07
Latitude 43.0463 ± 0.0036
Longitude 13.2978 ± 0.0062
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 19330781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 118
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89572
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 19330781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-25 05:33:31

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 19253291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-05-21 05:04:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSAG.HHZ. 2015-05-21T04:55:41.99 3.0 undecidable manual Sn -0.79 0
IV.LATB.EHZ. 2015-05-21T04:55:22.99 3.0 undecidable manual Sn -0.2 0
IV.FIAM.HHZ. 2015-05-21T04:55:03.15 0.6 undecidable manual S 190 87.5457 99 0.52 38
IV.MPAG.EHE. 2015-05-21T04:55:00.93 0.6 undecidable manual S 326 77.8665 100 0.85 35
IV.VIVA.HHZ. 2015-05-21T04:55:00.23 3.0 negative manual Pn 1.04 0
IV.MURB.HHZ. 2015-05-21T04:54:58.05 0.6 undecidable manual S 291 67.0773 102 0.81 36
IV.FRON.EHZ. 2015-05-21T04:54:58.66 0.3 undecidable manual S 319 69.7746 102 0.7 57
IV.MOMA.HHZ. 2015-05-21T04:54:57.25 0.6 undecidable manual S 246 65.1903 103 0.49 41
IV.SSFR.HHZ. 2015-05-21T04:54:56.00 0.3 undecidable manual S 316 60.0954 104 0.57 61
IV.CAMP.HHZ. 2015-05-21T04:54:55.14 0.6 undecidable manual S 171 57.2982 105 0.42 41
IV.ARVD.HHZ. 2015-05-21T04:54:55.35 0.3 undecidable manual S 330 57.7977 104 0.51 62
IV.RM33.EHZ. 2015-05-21T04:54:55.92 0.6 undecidable manual S 187 59.9955 104 0.51 40
IV.ATCC.EHZ. 2015-05-21T04:54:54.52 0.6 undecidable manual S 286 55.5 105 0.28 44
IV.BADI.EHZ. 2015-05-21T04:54:53.64 0.6 undecidable manual P 302 99.4227 98 0.23 40
IV.FOSV.EHZ. 2015-05-21T04:54:53.32 0.3 undecidable manual S 303 51.4152 107 0.12 68
IV.ASSB.HHZ. 2015-05-21T04:54:53.44 0.3 undecidable manual S 270 51.8037 106 0.14 68
IV.MMUR.HNE. 2015-05-21T04:54:53.39 0.3 undecidable manual S 331 50.1165 107 0.52 63
IV.FAGN.HHZ. 2015-05-21T04:54:51.96 0.6 undecidable manual P 165 89.6436 99 0.03 42
IV.FIAM.HHZ. 2015-05-21T04:54:51.14 0.6 undecidable manual P 190 87.5457 99 -0.47 39
IV.NARO.HHE. 2015-05-21T04:54:51.00 0.6 undecidable manual P 318 85.248 99 -0.26 41
IV.ATPI.EHZ. 2015-05-21T04:54:51.19 0.6 undecidable manual P 302 85.1481 99 -0.05 43
IV.VCEL.EHZ. 2015-05-21T04:54:51.69 0.3 undecidable manual P 148 84.7485 99 0.51 57
IV.FSSB.HHZ. 2015-05-21T04:54:50.92 0.3 undecidable manual P 330 83.1501 99 -0.02 65
IV.EL6.EHZ. 2015-05-21T04:54:49.12 0.3 undecidable manual S 333 35.1426 116 -0.02 70
IV.MPAG.EHE. 2015-05-21T04:54:49.98 0.3 undecidable manual P 326 77.8665 100 -0.16 64
IV.CING.HHZ. 2015-05-21T04:54:49.65 0.3 undecidable manual S 347 37.4292 114 -0.04 70
IV.ATFO.HHZ. 2015-05-21T04:54:48.55 0.6 undecidable manual P 301 68.6757 102 -0.19 43
IV.MOMA.HHZ. 2015-05-21T04:54:48.13 0.3 undecidable manual P 246 65.1903 103 -0.09 66
IV.MURB.HHZ. 2015-05-21T04:54:48.22 0.6 undecidable manual P 291 67.0773 102 -0.28 42
IV.ARRO.EHE. 2015-05-21T04:54:48.33 0.6 undecidable manual P 220 67.4769 102 -0.24 43
IV.CESI.HHZ. 2015-05-21T04:54:48.65 0.3 undecidable manual S 262 32.2455 118 0.22 69
IV.FRON.EHZ. 2015-05-21T04:54:48.38 0.6 undecidable manual P 319 69.7746 102 -0.53 40
IV.AOI.HHE. 2015-05-21T04:54:47.51 0.6 undecidable manual P 24 61.0944 104 -0.09 45
IV.SSFR.HHZ. 2015-05-21T04:54:47.36 0.1 undecidable manual P 316 60.0954 104 -0.09 89
IV.NRCA.HNZ. 2015-05-21T04:54:47.49 0.3 undecidable manual S 212 27.9498 122 0.05 72
IV.RM33.EHZ. 2015-05-21T04:54:47.11 0.3 undecidable manual P 187 59.9955 104 -0.33 64
IV.TERO.HHE. 2015-05-21T04:54:46.20 0.3 undecidable manual P 152 53.2023 106 -0.22 67
IV.ATCC.EHZ. 2015-05-21T04:54:46.58 0.3 undecidable manual P 286 55.5 105 -0.18 66
IV.LNSS.HHE. 2015-05-21T04:54:46.34 0.1 undecidable manual P 203 53.502 106 -0.13 90
IV.CAMP.HHZ. 2015-05-21T04:54:46.61 0.3 undecidable manual P 171 57.2982 105 -0.44 63
IV.ARVD.HHZ. 2015-05-21T04:54:46.88 0.3 undecidable manual P 330 57.7977 104 -0.23 65
IV.FOSV.EHZ. 2015-05-21T04:54:45.83 0.3 undecidable manual P 303 51.4152 107 -0.34 64
IV.ASSB.HHZ. 2015-05-21T04:54:45.96 0.3 undecidable manual P 270 51.8037 106 -0.26 65
IV.MMUR.HNE. 2015-05-21T04:54:45.81 0.6 undecidable manual P 331 50.1165 107 -0.17 45
IV.OFFI.HHZ. 2015-05-21T04:54:44.37 0.3 undecidable manual P 111 33.8439 117 0.74 57
IV.FDMO.HHZ. 2015-05-21T04:54:44.87 0.3 undecidable manual S 266 17.0718 138 -0.36 68
IV.CSP1.EHZ. 2015-05-21T04:54:43.84 0.1 undecidable manual S 304 9.0798 155 -0.2 95
IV.CESI.HHZ. 2015-05-21T04:54:43.33 0.1 negative manual P 262 32.2455 118 -0.08 94
IV.GUMA.HHZ. 2015-05-21T04:54:43.83 0.3 undecidable manual S 59 3.4965 170 0.22 72
IV.EL6.EHZ. 2015-05-21T04:54:43.64 0.3 undecidable manual P 333 35.1426 116 -0.18 69
IV.CING.HHZ. 2015-05-21T04:54:43.82 0.1 undecidable manual P 347 37.4292 114 -0.32 89
IV.NRCA.HNZ. 2015-05-21T04:54:42.72 0.3 undecidable manual P 212 27.9498 122 -0.12 71
IV.FDMO.HHZ. 2015-05-21T04:54:41.32 0.1 negative manual P 266 17.0718 138 -0.24 93
IV.MNTP.HNZ. 2015-05-21T04:54:41.57 0.3 undecidable manual P 54 17.1717 138 0 73
IV.CSP1.EHZ. 2015-05-21T04:54:40.69 0.1 negative manual P 304 9.0798 155 -0.19 95
IV.GUMA.HHZ. 2015-05-21T04:54:40.64 0.1 positive manual P 59 3.4965 170 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.7 0.0001086 1.54 AML other m 2015-05-21T04:54:56.52
IV.ARVD.HHE. ML:1.9 0.00014850000000000003 1.48 AML other m 2015-05-21T04:54:56.10
IV.ASSB.HHE. ML:2.0 0.00020700000000000002 0.32 AML other m 2015-05-21T04:54:54.18
IV.ASSB.HHN. ML:2.1 0.0003115 0.14 AML other m 2015-05-21T04:54:54.56
IV.ATCC.EHN. ML:2.0 0.0002045 0.7 AML other m 2015-05-21T04:54:55.23
IV.ATCC.EHE. ML:2.1 0.00026700000000000004 0.2 AML other m 2015-05-21T04:54:55.47
IV.ATFO.HHN. ML:2.0 0.000157 1.2 AML other m 2015-05-21T04:54:59.58
IV.ATFO.HHE. ML:1.9 0.0001215 1.38 AML other m 2015-05-21T04:55:00.28
IV.CAMP.HHE. ML:1.6 0.0000765 0.72 AML other m 2015-05-21T04:54:55.72
IV.CAMP.HHN. ML:1.5 0.00006865 0.5 AML other m 2015-05-21T04:54:56.64
IV.CESI.HHN. ML:1.7 0.00019800000000000002 0.42 AML other m 2015-05-21T04:54:49.23
IV.CESI.HHE. ML:1.2 0.00006644999999999999 1.42 AML other m 2015-05-21T04:54:51.82
IV.CSP1.EHN. ML:2.6 0.00244 0.26 AML other m 2015-05-21T04:54:43.93
IV.CSP1.EHE. ML:2.4 0.0015454999999999998 0.7 AML other m 2015-05-21T04:54:44.19
IV.FAGN.HHN. ML:1.8 0.0000713 0.44 AML other m 2015-05-21T04:55:10.46
IV.FAGN.HHE. ML:1.9 0.00009049999999999999 0.54 AML other m 2015-05-21T04:55:15.58
IV.FDMO.HHE. ML:2.2 0.0007975 0.16 AML other m 2015-05-21T04:54:45.01
IV.FDMO.HHN. ML:2.2 0.000875 1.08 AML other m 2015-05-21T04:54:45.19
IV.FOSV.EHE. ML:2.3 0.00046699999999999997 0.3 AML other m 2015-05-21T04:54:54.20
IV.FOSV.EHN. ML:2.3 0.00047750000000000006 0.42 AML other m 2015-05-21T04:54:54.32
IV.FRON.EHE. ML:1.9 0.00012770000000000001 0.66 AML other m 2015-05-21T04:55:00.98
IV.FRON.EHN. ML:2.1 0.000183 0.6 AML other m 2015-05-21T04:55:00.76
IV.FSSB.HHE. ML:2.2 0.000189 0.5 AML other m 2015-05-21T04:55:04.20
IV.FSSB.HHN. ML:2.4 0.0003205 0.3 AML other m 2015-05-21T04:55:06.26
IV.GUMA.HHN. ML:2.4 0.001965 0.34 AML other m 2015-05-21T04:54:44.22
IV.GUMA.HNN. ML:2.5 0.00246 1.54 AML other m 2015-05-21T04:54:44.14
IV.GUMA.HNE. ML:2.5 0.00219 0.56 AML other m 2015-05-21T04:54:44.18
IV.GUMA.HHE. ML:2.6 0.002945 0.38 AML other m 2015-05-21T04:54:44.16
IV.MNTP.HNE. ML:2.2 0.000846 0.3 AML other m 2015-05-21T04:54:46.23
IV.MNTP.HNN. ML:2.0 0.0006414999999999999 0.24 AML other m 2015-05-21T04:54:47.75
IV.MOMA.HHN. ML:2.1 0.0002305 0.22 AML other m 2015-05-21T04:54:57.97
IV.MOMA.HHE. ML:2.1 0.000209 0.22 AML other m 2015-05-21T04:54:58.23
IV.MURB.HHE. ML:2.5 0.0005195 0.24 AML other m 2015-05-21T04:54:59.20
IV.MURB.HHN. ML:2.6 0.0007310000000000001 0.26 AML other m 2015-05-21T04:54:59.25
IV.NRCA.HHE. ML:2.7 0.001895 0.14 AML other m 2015-05-21T04:54:47.88
IV.NRCA.HHN. ML:2.5 0.001385 0.1 AML other m 2015-05-21T04:54:48.64
IV.OFFI.HHE. ML:2.0 0.000339 1.52 AML other m 2015-05-21T04:54:52.57
IV.OFFI.HHN. ML:2.0 0.00035850000000000004 1.54 AML other m 2015-05-21T04:54:52.22
IV.RM33.EHN. ML:1.8 0.00012365 0.96 AML other m 2015-05-21T04:54:57.03
IV.RM33.EHE. ML:1.9 0.000141 1.46 AML other m 2015-05-21T04:54:56.96
IV.SSFR.HNE. ML:2.5 0.000585 0.24 AML other m 2015-05-21T04:54:57.02
IV.SSFR.HNN. ML:2.5 0.00057 0.16 AML other m 2015-05-21T04:54:57.18
IV.SSFR.HHN. ML:2.4 0.0005304999999999999 0.64 AML other m 2015-05-21T04:54:57.25
IV.SSFR.HHE. ML:2.5 0.0005765 0.2 AML other m 2015-05-21T04:54:56.90
IV.VCEL.EHE. ML:2.0 0.00011070000000000001 0.38 AML other m 2015-05-21T04:55:10.84
IV.VCEL.EHN. ML:1.9 0.00008965000000000001 0.78 AML other m 2015-05-21T04:55:09.28
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