Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 28-12-2017 and time 03:11:32 (Italy) in region 6 km NW Arquata del Tronto (AP)

A magnitude ML 2.5 earthquake occured in region: 6 km NW Arquata del Tronto (AP), on

  • 28-12-2017 02:11:32 (UTC)
  • 28-12-2017 03:11:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8170, 13.2460 at 15 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
Arquata del Tronto AP 6 1178 1178
Montegallo AP 8 523 1701
Montemonaco AP 11 604 2305
Castelsantangelo sul Nera MC 12 281 2586
Norcia PG 13 4957 7543
Accumoli RI 14 667 8210
Acquasanta Terme AP 14 2916 11126
Montefortino FM 16 1178 12304
Ussita MC 17 444 12748
Visso MC 18 1107 13855
Preci PG 18 724 14579
Roccafluvione AP 19 2010 16589
Palmiano AP 20 196 16785
Bolognola MC 20 142 16927

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
57 Km NE of Terni (111501 inhabitants)
77 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 inhabitants)
92 Km S of Ancona (100861 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 2.5 2017-12-28
02:11:32		 42.8172 13.2458 15 2018-09-04
09:10:41		 Bollettino Sismico Italiano INGV 54926121
Reviewed
Rev100 		ML 2.5 2017-12-28
02:11:32		 42.8195 13.2435 14 2017-12-28
02:20:59		 Sala Sismica INGV-Roma 52863871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-28 02:11:32 ± 0.04
Latitude 42.8172 ± 0.0018
Longitude 13.2458 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54926121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 306
Semi-minor axis of confidence ellipse (meter) 90
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 75
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.79590
Number of stations at which the event was observed 46
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 51
Type of magnitude ML
Reference to an origin 54926121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-17 14:13:16

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 76
Type of magnitude ML
Reference to an origin 52863871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-28 02:20:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MODR.HHZ. 2017-12-28T02:12:26.86 3.0 undecidable manual Sg 4.19 0
IV.MPAG.EHZ. 2017-12-28T02:12:02.30 3.0 undecidable manual S 0.39 0
IV.EL6.EHZ. 2017-12-28T02:11:50.32 0.3 undecidable manual S 348 57.9975 95 0.19 66
IV.MOMA.HHZ. 2017-12-28T02:11:49.72 0.1 undecidable manual S 269 55.0005 95 0.39 86
IV.SNTG.HHZ. 2017-12-28T02:11:49.66 0.1 undecidable manual S 333 54.501 95 0.46 84
MN.AQU.HHZ. 2017-12-28T02:11:49.00 0.1 undecidable manual S 166 53.0025 95 0.2 88
IV.GAG1.HNE. 2017-12-28T02:11:48.27 0.3 undecidable manual S 343 48.9177 96 0.57 62
IV.SRES.HHZ. 2017-12-28T02:11:47.67 0.3 undecidable manual P 223 88.1451 93 0.51 58
IV.ARRO.EHZ. 2017-12-28T02:11:47.54 0.1 undecidable manual S 236 47.2194 96 0.28 89
IV.T1247.HHZ. 2017-12-28T02:11:46.29 0.1 undecidable manual S 174 41.9247 98 0.44 85
IV.FRON.EHZ. 2017-12-28T02:11:46.98 0.1 undecidable manual P 332 88.3449 93 -0.22 82
IV.OFFI.HHZ. 2017-12-28T02:11:45.22 0.3 undecidable manual S 70 38.0286 99 0.38 65
IV.ARVD.HHZ. 2017-12-28T02:11:45.67 0.3 positive manual P 342 79.4649 93 -0.15 64
IV.MNTP.HNZ. 2017-12-28T02:11:45.91 0.1 undecidable manual S 27 39.9267 98 0.59 82
IV.T0110.HHZ. 2017-12-28T02:11:45.44 0.1 undecidable manual P 146 78.2661 93 -0.21 85
IV.MURB.HHZ. 2017-12-28T02:11:45.51 0.6 positive manual P 310 76.5678 93 0.13 43
IV.SSFR.HHZ. 2017-12-28T02:11:45.76 0.3 positive manual P 332 78.2661 93 0.12 65
IV.CESI.HHZ. 2017-12-28T02:11:44.07 0.1 undecidable manual S 307 34.6431 100 0.12 94
IV.TERO.HHZ. 2017-12-28T02:11:44.06 0.1 undecidable manual S 126 36.2415 99 -0.31 90
IV.PP3.EHZ. 2017-12-28T02:11:44.58 0.3 undecidable manual P 25 68.7756 94 0.39 62
IV.PF6.EHN. 2017-12-28T02:11:44.00 0.1 undecidable manual S 353 35.8419 99 -0.25 90
IV.RM33.EHZ. 2017-12-28T02:11:44.07 0.3 undecidable manual S 184 34.2435 100 0.23 68
OB.GAVE.EHZ. 2017-12-28T02:11:43.34 3.0 undecidable manual S 0.15 0
IV.FOSV.EHZ. 2017-12-28T02:11:43.62 0.3 undecidable manual P 324 65.9895 94 -0.13 66
IV.CAMP.HHZ. 2017-12-28T02:11:43.26 0.3 undecidable manual S 157 33.9438 100 -0.49 65
IV.ATCC.EHZ. 2017-12-28T02:11:43.47 1.0 undecidable manual P 310 63.8916 94 0.04 23
IV.T1221.EHZ. 2017-12-28T02:11:43.58 0.1 undecidable manual S 279 32.8449 101 0.13 94
IV.FAGN.HHZ. 2017-12-28T02:11:43.49 0.1 undecidable manual P 156 67.0773 94 -0.44 83
IV.MOMA.HHZ. 2017-12-28T02:11:42.16 1.0 positive manual P 269 55.0005 95 0.09 23
IV.CING.HHZ. 2017-12-28T02:11:42.89 0.3 positive manual P 356 62.0934 94 -0.26 65
IV.GUMA.HHZ. 2017-12-28T02:11:42.65 0.3 undecidable manual S 15 28.1496 104 0.4 67
IV.CESX.HHZ. 2017-12-28T02:11:42.68 0.3 undecidable manual P 247 58.497 95 0.08 68
IV.LNSS.HHZ. 2017-12-28T02:11:42.76 0.3 undecidable manual S 215 29.0487 103 0.28 68
IV.EL6.EHZ. 2017-12-28T02:11:42.32 0.6 positive manual P 348 57.9975 95 -0.21 44
IV.CSP1.EHZ. 2017-12-28T02:11:42.70 0.3 undecidable manual S 354 30.6471 102 -0.19 69
IV.FIAM.HHZ. 2017-12-28T02:11:42.90 0.3 positive manual P 190 61.7937 94 -0.21 66
IV.MF5.EHZ. 2017-12-28T02:11:41.89 0.3 undecidable manual S 42 25.6521 106 0.28 68
IV.ASSB.HHZ. 2017-12-28T02:11:41.77 3.0 negative manual P -0.1 0
IV.SNTG.HHZ. 2017-12-28T02:11:41.63 0.1 undecidable manual P 333 54.501 95 -0.36 85
IV.FDMO.HHZ. 2017-12-28T02:11:41.70 0.3 undecidable manual S 332 27.5502 104 -0.38 67
MN.AQU.HHZ. 2017-12-28T02:11:41.59 0.6 negative manual P 166 53.0025 95 -0.17 45
IV.T1299.EHZ. 2017-12-28T02:11:40.59 0.3 undecidable manual S 172 20.4684 112 0.29 69
IV.SEF1.HNN. 2017-12-28T02:11:40.16 0.3 undecidable manual P 327 43.8228 97 -0.2 67
IV.GAG1.HNE. 2017-12-28T02:11:40.91 0.1 undecidable manual P 343 48.9177 96 -0.22 89
IV.SMA1.EHZ. 2017-12-28T02:11:40.46 0.3 undecidable manual S 161 21.9669 110 -0.19 71
IV.FEMA.HNZ. 2017-12-28T02:11:40.75 0.1 undecidable manual S 315 22.6551 109 -0.08 95
IV.ARRO.EHZ. 2017-12-28T02:11:40.84 0.6 positive manual P 236 47.2194 96 -0.03 46
IV.MNTP.HNZ. 2017-12-28T02:11:39.94 0.1 undecidable manual P 27 39.9267 98 0.19 91
IV.OFFI.HHZ. 2017-12-28T02:11:39.96 0.1 undecidable manual P 70 38.0286 99 0.49 85
IV.TERO.HHZ. 2017-12-28T02:11:39.05 0.6 undecidable manual P 126 36.2415 99 -0.15 47
IV.T1247.HHZ. 2017-12-28T02:11:39.86 0.3 undecidable manual P 174 41.9247 98 -0.2 68
IV.LNSS.HHZ. 2017-12-28T02:11:38.12 0.1 undecidable manual P 215 29.0487 103 0.01 96
IV.T1221.EHZ. 2017-12-28T02:11:38.62 0.1 undecidable manual P 279 32.8449 101 -0.05 94
IV.PF6.EHN. 2017-12-28T02:11:38.71 0.3 undecidable manual P 353 35.8419 99 -0.42 65
IV.CSP1.EHZ. 2017-12-28T02:11:38.14 0.1 positive manual P 354 30.6471 102 -0.21 92
IV.RM33.EHZ. 2017-12-28T02:11:38.81 0.1 undecidable manual P 184 34.2435 100 -0.09 94
OB.GAVE.EHZ. 2017-12-28T02:11:38.52 3.0 undecidable manual P -0.02 0
IV.CESI.HHZ. 2017-12-28T02:11:38.91 0.1 negative manual P 307 34.6431 100 -0.05 94
IV.GUMA.HHZ. 2017-12-28T02:11:38.04 0.1 undecidable manual P 15 28.1496 104 0.06 95
IV.CAMP.HHZ. 2017-12-28T02:11:38.61 0.1 undecidable manual P 157 33.9438 100 -0.23 92
IV.MTRA.EHZ. 2017-12-28T02:11:38.48 0.3 undecidable manual S 119 13.9749 126 -0.29 70
IV.FEMA.HNZ. 2017-12-28T02:11:37.10 0.1 undecidable manual P 315 22.6551 109 -0.06 96
IV.MMO1.EHZ. 2017-12-28T02:11:37.81 0.3 undecidable manual S 36 11.2776 134 -0.4 69
IV.FDMO.HHZ. 2017-12-28T02:11:37.60 0.1 undecidable manual P 332 27.5502 104 -0.28 91
IV.NRCA.HNZ. 2017-12-28T02:11:37.97 0.3 undecidable manual S 280 10.878 135 -0.17 71
IV.MF5.EHZ. 2017-12-28T02:11:37.77 0.1 undecidable manual P 42 25.6521 106 0.16 94
IV.MC2.EHZ. 2017-12-28T02:11:37.98 0.1 undecidable manual S 336 11.4774 134 -0.27 93
IV.SMA1.EHZ. 2017-12-28T02:11:37.01 0.1 positive manual P 161 21.9669 110 -0.05 97
IV.T1214.EHZ. 2017-12-28T02:11:37.53 0.1 undecidable manual S 205 7.0929 149 0.01 100
IV.T1299.EHZ. 2017-12-28T02:11:36.99 0.1 positive manual P 172 20.4684 112 0.14 95
IV.MC2.EHZ. 2017-12-28T02:11:35.76 0.1 positive manual P 336 11.4774 134 0.09 98
IV.MTRA.EHZ. 2017-12-28T02:11:35.84 0.1 undecidable manual P 119 13.9749 126 -0.13 97
IV.T1214.EHZ. 2017-12-28T02:11:35.44 0.1 undecidable manual P 205 7.0929 149 0.19 96
IV.MMO1.EHZ. 2017-12-28T02:11:35.52 0.1 undecidable manual P 36 11.2776 134 -0.13 97
IV.NRCA.HNZ. 2017-12-28T02:11:35.60 0.1 undecidable manual P 280 10.878 135 0 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.7 0.004595 0.1 AML other m 2017-12-28T02:11:38.35
IV.NRCA.HHE. ML:2.7 0.004775000000000001 0.1 AML other m 2017-12-28T02:11:38.35
IV.NRCA.HHN. ML:2.8 0.00553 0.12 AML other m 2017-12-28T02:11:38.57
IV.NRCA.HNN. ML:2.7 0.005275 0.14 AML other m 2017-12-28T02:11:38.57
IV.MTRA.HNN. ML:2.8 0.005465 0.5 AML other m 2017-12-28T02:11:38.83
IV.MTRA.EHN. ML:2.8 0.00549 0.48 AML other m 2017-12-28T02:11:38.83
IV.MTRA.HNE. ML:2.8 0.005 1.82 AML other m 2017-12-28T02:11:39.99
IV.MTRA.EHE. ML:2.8 0.004974999999999999 1.8 AML other m 2017-12-28T02:11:39.99
IV.T1299.EHN. ML:2.6 0.00271 0.16 AML other m 2017-12-28T02:11:40.76
IV.T1299.HNN. ML:2.6 0.002725 0.16 AML other m 2017-12-28T02:11:40.76
IV.SMA1.EHN. ML:2.7 0.0028650000000000004 0.2 AML other m 2017-12-28T02:11:40.88
IV.T1299.HNE. ML:2.4 0.0017599999999999998 0.12 AML other m 2017-12-28T02:11:40.83
IV.T1299.EHE. ML:2.4 0.001765 0.12 AML other m 2017-12-28T02:11:40.83
IV.SMA1.EHE. ML:2.7 0.0028650000000000004 1.2 AML other m 2017-12-28T02:11:41.94
IV.FDMO.HHN. ML:2.4 0.0012200000000000002 0.28 AML other m 2017-12-28T02:11:42.16
IV.LNSS.HHE. ML:2.5 0.0015249999999999999 0.32 AML other m 2017-12-28T02:11:43.26
IV.LNSS.HHN. ML:2.4 0.00133 0.6 AML other m 2017-12-28T02:11:43.42
OB.GAVE.EHN. ML:2.7 0.00202 1.76 AML other m 2017-12-28T02:11:44.01
IV.CAMP.HHN. ML:2.4 0.0010455 0.54 AML other m 2017-12-28T02:11:44.02
OB.GAVE.EHE. ML:2.9 0.0031550000000000003 0.54 AML other m 2017-12-28T02:11:44.20
IV.RM33.HNN. ML:2.5 0.0013050000000000002 1.06 AML other m 2017-12-28T02:11:44.55
IV.RM33.EHN. ML:2.5 0.0012 1.06 AML other m 2017-12-28T02:11:44.55
IV.TERO.HHE. ML:2.4 0.0010105 0.32 AML other m 2017-12-28T02:11:44.74
IV.CESI.HHN. ML:2.7 0.00178 0.38 AML other m 2017-12-28T02:11:44.41
IV.CESI.HHE. ML:2.3 0.0008950000000000001 0.2 AML other m 2017-12-28T02:11:44.73
IV.CAMP.HHE. ML:2.3 0.0008015 1.2 AML other m 2017-12-28T02:11:44.08
IV.TERO.HHN. ML:2.5 0.001095 0.2 AML other m 2017-12-28T02:11:44.84
IV.RM33.HNE. ML:2.4 0.0010375 0.32 AML other m 2017-12-28T02:11:44.83
IV.RM33.EHE. ML:2.4 0.000982 0.18 AML other m 2017-12-28T02:11:44.83
IV.OFFI.HHN. ML:2.8 0.002175 0.66 AML other m 2017-12-28T02:11:47.50
IV.ARRO.EHE. ML:2.2 0.0004555 0.5 AML other m 2017-12-28T02:11:48.27
IV.ARRO.EHN. ML:2.3 0.0005525 0.16 AML other m 2017-12-28T02:11:48.94
IV.ASSB.HHE. ML:2.3 0.000475 0.22 AML other m 2017-12-28T02:11:49.73
IV.MOMA.HHN. ML:2.2 0.00032599999999999996 0.28 AML other m 2017-12-28T02:11:51.14
IV.MOMA.HHE. ML:2.4 0.0005254999999999999 1.08 AML other m 2017-12-28T02:11:51.59
IV.CESX.HHN. ML:2.3 0.00044050000000000003 0.32 AML other m 2017-12-28T02:11:52.41
IV.ATCC.EHE. ML:2.3 0.000356 0.56 AML other m 2017-12-28T02:11:52.96
IV.EL6.EHE. ML:2.2 0.00032450000000000003 0.98 AML other m 2017-12-28T02:11:52.50
IV.FOSV.EHE. ML:2.0 0.00020150000000000002 0.88 AML other m 2017-12-28T02:11:53.19
IV.FOSV.EHN. ML:2.4 0.0005304999999999999 0.36 AML other m 2017-12-28T02:11:53.25
IV.CESX.HHE. ML:2.1 0.0002565 0.94 AML other m 2017-12-28T02:11:53.52
IV.ATCC.EHN. ML:2.3 0.0003725 0.44 AML other m 2017-12-28T02:11:53.95
IV.SSFR.HNE. ML:2.7 0.0007355 0.28 AML other m 2017-12-28T02:11:56.75
IV.SSFR.HHN. ML:2.7 0.0007270000000000001 0.22 AML other m 2017-12-28T02:11:57.06
IV.SSFR.HNN. ML:2.8 0.0008505 1.72 AML other m 2017-12-28T02:11:57.07
IV.SSFR.HHE. ML:2.7 0.0006905 0.26 AML other m 2017-12-28T02:11:57.31
IV.T0110.HHN. ML:2.4 0.000336 0.74 AML other m 2017-12-28T02:11:57.36
IV.T0110.HHE. ML:2.5 0.00047050000000000005 0.42 AML other m 2017-12-28T02:11:58.35
IV.MURB.HHE. ML:2.7 0.0007375000000000001 0.22 AML other m 2017-12-28T02:11:58.47
IV.FRON.EHN. ML:2.2 0.0001705 0.34 AML other m 2017-12-28T02:11:59.61
IV.FRON.EHE. ML:2.0 0.00012295 0.48 AML other m 2017-12-28T02:12:00.52
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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