Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 21-05-2015 and time 18:55:08 (Italy) in region 1 km NE Sarnano (MC)

A magnitude ML 1.9 earthquake occured in region: 1 km NE Sarnano (MC), on

  • 21-05-2015 16:55:08 (UTC)
  • 21-05-2015 18:55:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0460, 13.3100 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 3 815 4079
San Ginesio MC 7 3498 7577
Amandola FM 8 3629 11206
Cessapalombo MC 8 512 11718
Bolognola MC 9 142 11860
Sant'Angelo in Pontano MC 9 1436 13296
Penna San Giovanni MC 9 1108 14404
Camporotondo di Fiastrone MC 10 563 14967
Monte San Martino MC 11 765 15732
Acquacanina MC 11 121 15853
Montefortino FM 12 1178 17031
Ripe San Ginesio MC 12 852 17883
Smerillo FM 12 365 18248
Caldarola MC 12 1823 20071
Fiastra MC 13 559 20630
Comunanza AP 13 3166 23796
Montefalcone Appennino FM 14 424 24220
Colmurano MC 14 1263 25483
Belforte del Chienti MC 15 1886 27369
Falerone FM 15 3337 30706
Servigliano FM 15 2336 33042
Santa Vittoria in Matenano FM 16 1330 34372
Loro Piceno MC 16 2401 36773
Montemonaco AP 16 604 37377
Montappone FM 17 1682 39059
Monte Vidon Corrado FM 17 731 39790
Force AP 17 1354 41144
Serrapetrona MC 18 966 42110
Urbisaglia MC 18 2628 44738
Ussita MC 18 444 45182
Monteleone di Fermo FM 18 395 45577
Massa Fermana FM 18 963 46540
Fiordimonte MC 18 202 46742
Pievebovigliana MC 18 866 47608
Tolentino MC 18 20069 67677
Montelparo FM 19 778 68455
Belmonte Piceno FM 19 646 69101

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
66 Km S of Ancona (100861 inhabitants)
75 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)
98 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 1.9 2015-05-21
16:55:08		 43.0457 13.3098 23 2016-01-08
08:44:50		 Bollettino Sismico Italiano INGV 19362431
Reviewed
Rev100 		ML 2.0 2015-05-21
16:55:07		 43.047 13.3403 25 2015-05-21
17:07:06		 Sala Sismica INGV-Roma 19264691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-05-21 16:55:08 ± 0.07
Latitude 43.0457 ± 0.0027
Longitude 13.3098 ± 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 19362431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 231
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) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 67
Number of defining phases 64
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77522
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 19362431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-26 12:43:00

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 19264691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-05-21 17:07:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHZ. 2015-05-21T16:55:50.52 3.0 negative manual Pg 8.79 0
IV.ATPI.EHZ. 2015-05-21T16:55:34.69 0.6 undecidable manual S 302 86.0472 99 0.85 34
IV.NARO.HHZ. 2015-05-21T16:55:34.50 0.3 undecidable manual S 317 85.9473 99 0.66 55
IV.ATVO.HHZ. 2015-05-21T16:55:33.15 0.6 undecidable manual S 297 82.0512 100 0.36 41
IV.MPAG.EHZ. 2015-05-21T16:55:32.49 0.6 undecidable manual S 326 78.4659 100 0.62 38
IV.CESX.HHE. 2015-05-21T16:55:31.69 0.6 undecidable manual S 231 76.2681 101 0.42 41
IV.FRON.EHE. 2015-05-21T16:55:30.30 0.3 undecidable manual S 318 70.4739 102 0.53 60
IV.ATFO.HHE. 2015-05-21T16:55:29.97 0.6 undecidable manual S 301 69.4749 102 0.45 41
IV.MOMA.HHZ. 2015-05-21T16:55:28.92 0.3 undecidable manual S 246 66.0894 103 0.3 65
IV.RM33.EHZ. 2015-05-21T16:55:27.86 0.3 undecidable manual S 187 59.9955 104 0.81 57
IV.SSFR.HHZ. 2015-05-21T16:55:27.59 0.3 undecidable manual S 316 60.7947 104 0.34 64
IV.ARVD.HHZ. 2015-05-21T16:55:26.90 0.6 undecidable manual S 329 58.2972 105 0.28 44
IV.SRES.HHZ. 2015-05-21T16:55:26.85 3.0 negative manual P 0.63 0
IV.LNSS.HHZ. 2015-05-21T16:55:26.04 0.3 undecidable manual S 204 53.8017 106 0.6 62
IV.ATCC.EHZ. 2015-05-21T16:55:26.41 0.3 undecidable manual S 286 56.3991 105 0.29 66
IV.ASSB.HHZ. 2015-05-21T16:55:25.30 0.6 undecidable manual S 270 52.8027 107 0.11 46
IV.MMUR.HNE. 2015-05-21T16:55:25.04 0.6 undecidable manual S 330 50.7159 107 0.39 43
IV.FOSV.EHE. 2015-05-21T16:55:24.74 0.6 undecidable manual S 302 52.3032 107 -0.32 44
IV.ATPI.EHZ. 2015-05-21T16:55:23.13 0.3 undecidable manual P 302 86.0472 99 0.14 64
IV.FSSB.HHZ. 2015-05-21T16:55:22.85 0.3 undecidable manual P 329 83.6496 100 0.22 63
IV.ATVO.HHZ. 2015-05-21T16:55:22.11 0.3 undecidable manual P 297 82.0512 100 -0.27 63
IV.NARO.HHZ. 2015-05-21T16:55:22.65 0.3 undecidable manual P 317 85.9473 99 -0.34 62
IV.MPAG.EHZ. 2015-05-21T16:55:21.61 0.3 undecidable manual P 326 78.4659 100 -0.24 64
IV.CESX.HHE. 2015-05-21T16:55:21.49 0.6 undecidable manual P 231 76.2681 101 -0.02 45
IV.SNTG.HHZ. 2015-05-21T16:55:21.33 0.3 undecidable manual S 308 37.8288 114 -0.11 71
IV.CING.HHZ. 2015-05-21T16:55:21.56 0.3 undecidable manual S 346 37.7289 114 0.14 70
IV.CESI.HHZ. 2015-05-21T16:55:20.35 0.3 undecidable manual S 262 33.1446 118 0.03 73
IV.GIGS.HHE. 2015-05-21T16:55:20.33 0.3 undecidable manual P 162 69.0753 102 -0.1 66
IV.EL6.EHZ. 2015-05-21T16:55:20.94 0.3 undecidable manual S 332 35.742 116 0.02 72
IV.ATFO.HHE. 2015-05-21T16:55:20.22 0.6 undecidable manual P 301 69.4749 102 -0.27 43
IV.FRON.EHE. 2015-05-21T16:55:20.28 0.6 undecidable manual P 318 70.4739 102 -0.36 42
IV.ARRO.EHE. 2015-05-21T16:55:20.12 0.3 undecidable manual P 221 68.0763 102 -0.16 66
IV.MOMA.HHZ. 2015-05-21T16:55:19.82 0.3 undecidable manual P 246 66.0894 103 -0.15 67
IV.AOI.HHE. 2015-05-21T16:55:19.81 0.3 undecidable manual P 23 60.6948 104 0.64 59
IV.CRM1.HNE. 2015-05-21T16:55:19.04 0.1 undecidable manual S 312 27.3504 124 0.05 97
IV.GAG1.HNE. 2015-05-21T16:55:19.00 0.3 undecidable manual S 317 28.9488 122 -0.35 69
IV.NRCA.HHZ. 2015-05-21T16:55:19.20 0.3 undecidable manual S 214 28.3494 123 -0.02 73
IV.SSFR.HHZ. 2015-05-21T16:55:19.10 0.3 undecidable manual P 316 60.7947 104 -0.08 69
IV.ATCC.EHZ. 2015-05-21T16:55:18.29 0.1 undecidable manual P 286 56.3991 105 -0.24 89
IV.ARVD.HHZ. 2015-05-21T16:55:18.57 0.3 undecidable manual P 329 58.2972 105 -0.25 67
IV.RM33.EHZ. 2015-05-21T16:55:18.89 0.1 undecidable manual P 187 59.9955 104 -0.18 89
IV.CAMP.HHE. 2015-05-21T16:55:18.40 0.3 undecidable manual P 172 57.0984 105 -0.24 66
IV.FEMA.HNE. 2015-05-21T16:55:18.24 0.3 undecidable manual S 246 23.0547 129 0.18 72
IV.ASSB.HHZ. 2015-05-21T16:55:17.60 0.1 negative manual P 270 52.8027 107 -0.39 87
IV.MMUR.HNE. 2015-05-21T16:55:17.56 0.6 undecidable manual P 330 50.7159 107 -0.12 46
IV.TERO.HHZ. 2015-05-21T16:55:17.95 0.3 undecidable manual P 153 52.6029 107 -0.02 70
IV.FOSV.EHE. 2015-05-21T16:55:17.65 0.3 undecidable manual P 302 52.3032 107 -0.27 67
IV.MDAR.HNE. 2015-05-21T16:55:17.29 0.3 undecidable manual S 320 21.1677 132 -0.4 69
IV.SSM1.HNZ. 2015-05-21T16:55:17.88 0.3 undecidable manual S 332 22.9548 129 -0.17 72
IV.LNSS.HHZ. 2015-05-21T16:55:17.92 0.3 undecidable manual P 204 53.8017 106 -0.22 67
IV.OFFI.HHZ. 2015-05-21T16:55:16.51 3.0 undecidable manual P 0.77 0
IV.FDMO.HHE. 2015-05-21T16:55:16.71 0.3 undecidable manual S 267 18.0708 137 -0.38 69
IV.CSP1.EHZ. 2015-05-21T16:55:15.77 0.1 undecidable manual S 301 9.9789 154 -0.08 99
IV.CING.HHZ. 2015-05-21T16:55:15.66 0.1 positive manual P 346 37.7289 114 -0.16 94
IV.GUMA.HHZ. 2015-05-21T16:55:15.83 0.3 undecidable manual S 47 2.7972 172 0.54 70
IV.CESI.HHZ. 2015-05-21T16:55:15.05 0.1 negative manual P 262 33.1446 118 -0.13 95
IV.EL6.EHZ. 2015-05-21T16:55:15.37 0.1 undecidable manual P 332 35.742 116 -0.16 94
IV.SNTG.HHZ. 2015-05-21T16:55:15.59 0.1 undecidable manual P 308 37.8288 114 -0.24 92
IV.NRCA.HHZ. 2015-05-21T16:55:14.43 0.1 positive manual P 214 28.3494 123 -0.11 95
IV.CRM1.HNE. 2015-05-21T16:55:14.37 0.3 undecidable manual P 312 27.3504 124 -0.04 73
IV.GAG1.HNE. 2015-05-21T16:55:14.57 0.3 undecidable manual P 317 28.9488 122 -0.05 73
IV.FEMA.HNE. 2015-05-21T16:55:13.90 0.3 undecidable manual P 246 23.0547 129 0.02 74
IV.MDAR.HNE. 2015-05-21T16:55:13.44 0.3 undecidable manual P 320 21.1677 132 -0.22 71
IV.SSM1.HNZ. 2015-05-21T16:55:13.73 0.1 undecidable manual P 332 22.9548 129 -0.14 96
IV.FDMO.HHE. 2015-05-21T16:55:13.10 0.1 negative manual P 267 18.0708 137 -0.22 95
IV.CSP1.EHZ. 2015-05-21T16:55:12.55 0.1 negative manual P 301 9.9789 154 -0.05 100
IV.GUMA.HHZ. 2015-05-21T16:55:12.57 0.1 undecidable manual P 47 2.7972 172 0.29 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.6 0.00007769999999999999 0.36 AML other m 2015-05-21T16:55:28.24
IV.ARVD.HHE. ML:1.7 0.00009565 0.72 AML other m 2015-05-21T16:55:28.89
IV.ASSB.HHE. ML:1.8 0.0001255 1.1 AML other m 2015-05-21T16:55:27.37
IV.ASSB.HHN. ML:2.0 0.00022799999999999999 0.22 AML other m 2015-05-21T16:55:26.74
IV.CESI.HHN. ML:1.4 0.00009934999999999999 0.2 AML other m 2015-05-21T16:55:21.02
IV.CESI.HHE. ML:1.2 0.00006165 0.18 AML other m 2015-05-21T16:55:21.22
IV.CING.HHE. ML:1.8 0.0001875 0.9 AML other m 2015-05-21T16:55:22.07
IV.CING.HHN. ML:1.8 0.00021150000000000002 0.22 AML other m 2015-05-21T16:55:22.37
IV.FSSB.HHE. ML:2.2 0.0001895 0.32 AML other m 2015-05-21T16:55:36.86
IV.FSSB.HHN. ML:2.1 0.00015050000000000003 0.34 AML other m 2015-05-21T16:55:40.18
IV.GUMA.HHE. ML:1.9 0.000555 1.54 AML other m 2015-05-21T16:55:16.24
IV.GUMA.HHN. ML:1.9 0.000626 0.5 AML other m 2015-05-21T16:55:16.26
IV.LNSS.HHE. ML:1.8 0.000149 0.18 AML other m 2015-05-21T16:55:27.20
IV.LNSS.HHN. ML:2.0 0.0001995 0.2 AML other m 2015-05-21T16:55:27.40
IV.NARO.HHN. ML:1.7 0.000055599999999999996 1.5 AML other m 2015-05-21T16:55:37.05
IV.NARO.HHE. ML:1.6 0.00004875 0.28 AML other m 2015-05-21T16:55:35.48
IV.NRCA.HHE. ML:2.5 0.0013399999999999998 0.42 AML other m 2015-05-21T16:55:19.91
IV.NRCA.HNN. ML:2.4 0.00113 0.8 AML other m 2015-05-21T16:55:20.49
IV.NRCA.HHN. ML:2.5 0.0011719999999999999 0.16 AML other m 2015-05-21T16:55:19.56
IV.NRCA.HNE. ML:2.5 0.0012250000000000002 0.42 AML other m 2015-05-21T16:55:19.91
IV.SNTG.HHN. ML:2.0 0.0003115 0.42 AML other m 2015-05-21T16:55:21.74
IV.SNTG.HHE. ML:1.9 0.000245 0.62 AML other m 2015-05-21T16:55:21.75
IV.SSFR.HNE. ML:2.6 0.00073 0.22 AML other m 2015-05-21T16:55:28.74
IV.SSFR.HHE. ML:2.5 0.0006499999999999999 0.9 AML other m 2015-05-21T16:55:28.17
IV.SSFR.HHN. ML:2.5 0.000607 1.2 AML other m 2015-05-21T16:55:28.70
IV.SSFR.HNN. ML:2.5 0.0005855 0.26 AML other m 2015-05-21T16:55:29.31
IV.TERO.HHN. ML:1.3 0.0000401 1 AML other m 2015-05-21T16:55:27.54
IV.TERO.HHE. ML:1.3 0.0000463 1.26 AML other m 2015-05-21T16:55:29.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
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