Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 25-08-2018 and time 01:10:32 (UTC) in region 5 km NE Acqualagna (PU)

A magnitude ML 1.7 earthquake occured in region: 5 km NE Acqualagna (PU), on

  • 25-08-2018 01:10:32 (UTC)
  • 25-08-2018 03:10:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6400, 12.7210 at 32 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
Acqualagna PU 5 4393 4393
Fermignano PU 7 8596 12989
Fossombrone PU 9 9575 22564
Urbino PU 12 15019 37583
Cagli PU 12 8731 46314
Isola del Piano PU 12 594 46908
Pergola PU 13 6333 53241
Sant'Ippolito PU 13 1563 54804
Frontone PU 14 1300 56104
Montefelcino PU 14 2671 58775
Fratte Rosa PU 15 966 59741
Petriano PU 16 2829 62570
Urbania PU 16 7099 69669
Serra Sant'Abbondio PU 17 1027 70696
Barchi PU 17 967 71663
Serrungarina PU 17 2634 74297
Piobbico PU 18 2029 76326
San Lorenzo in Campo PU 19 3414 79740
Saltara PU 19 6925 86665
Peglio PU 19 696 87361
Cartoceto PU 19 7887 95248
Cantiano PU 20 2245 97493

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Fano (60888 inhabitants)
34 Km SW of Pesaro (94582 inhabitants)
49 Km S of Rimini (147750 inhabitants)
64 Km W of Ancona (100861 inhabitants)
65 Km NE of Perugia (166134 inhabitants)
67 Km SE of Cesena (96758 inhabitants)
70 Km E of Arezzo (99543 inhabitants)
76 Km N of Foligno (57155 inhabitants)
85 Km SE of Forlì (117913 inhabitants)
96 Km SE of Ravenna (159116 inhabitants)
98 Km SE of Faenza (58541 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 2018-08-25
01:10:32		 43.64 12.721 32 2019-04-24
14:51:14		 Bollettino Sismico Italiano INGV 66967731
Reviewed
Rev100 		ML 1.7 2018-08-25
01:10:33		 43.6473 12.733 30 2018-08-25
01:19:03		 Sala Sismica INGV-Roma 60178661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-25 01:10:32 ± 0.2
Latitude 43.6400 ± 0.0090
Longitude 12.7210 ± 0.0099
Depth (km) 32 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66967731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 883
Semi-minor axis of confidence ellipse (meter) 491
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 208
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.69068
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 66967731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-27 11:56:20

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 60178661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-25 01:19:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2018-08-25T01:10:54.87 0.6 undecidable manual S 184 66.4779 110 0.75 38
IV.EL6.EHZ. 2018-08-25T01:10:50.10 0.6 undecidable manual S 138 46.1205 120 0.92 37
IV.ATVO.HHZ. 2018-08-25T01:10:47.53 0.6 undecidable manual S 222 38.1285 125 0.14 48
IV.FOSV.EHZ. 2018-08-25T01:10:47.85 0.6 undecidable manual S 175 38.4282 125 0.4 45
IV.PARC.HHZ. 2018-08-25T01:10:47.91 0.6 undecidable manual S 272 38.7279 125 0.39 46
IV.ASQU.HHZ. 2018-08-25T01:10:47.18 1.0 undecidable manual P 283 76.6677 108 0.53 21
IV.CSP1.EHZ. 2018-08-25T01:10:46.03 0.3 undecidable manual P 147 72.2721 109 0.03 69
IV.ATFO.HHZ. 2018-08-25T01:10:46.21 0.6 undecidable manual S 202 32.6451 130 -0.01 50
IV.CAFI.HHZ. 2018-08-25T01:10:46.36 0.6 undecidable manual P 241 69.8745 109 0.71 39
IV.ATPI.EHZ. 2018-08-25T01:10:46.55 0.6 undecidable manual S 231 33.1446 129 0.23 48
IV.CESI.HHZ. 2018-08-25T01:10:45.82 0.3 undecidable manual P 168 71.9724 109 -0.14 68
IV.APEC.HHZ. 2018-08-25T01:10:45.20 0.6 undecidable manual S 250 25.8519 137 0.3 48
IV.ARVD.HHZ. 2018-08-25T01:10:44.97 0.6 undecidable manual S 132 23.6541 140 0.44 46
IV.ATTE.HHZ. 2018-08-25T01:10:44.22 0.6 undecidable manual P 211 57.2982 114 0.37 44
IV.PE3.EHZ. 2018-08-25T01:10:44.39 0.6 undecidable manual S 289 19.0698 146 0.61 44
IV.ASSB.HHZ. 2018-08-25T01:10:44.81 0.3 undecidable manual P 184 66.4779 110 -0.35 66
IV.PIEI.HHZ. 2018-08-25T01:10:43.19 0.6 undecidable manual S 232 18.87 146 -0.56 45
IV.CING.HHZ. 2018-08-25T01:10:43.03 0.1 positive manual P 127 48.1185 118 0.45 88
IV.BLLA.EHE. 2018-08-25T01:10:43.12 0.3 undecidable manual P 340 59.2962 113 -1.01 52
IV.MPAG.HNE. 2018-08-25T01:10:42.28 0.6 undecidable manual S 111 3.2967 173 -0.01 52
IV.MURB.HHZ. 2018-08-25T01:10:42.39 0.3 undecidable manual P 201 44.7219 120 0.27 69
IV.RSM2.HHE. 2018-08-25T01:10:42.31 0.3 undecidable manual P 326 39.7269 124 0.84 58
IV.FRON.EHZ. 2018-08-25T01:10:42.81 0.6 undecidable manual S 178 13.5753 155 -0.24 49
IV.EL6.EHZ. 2018-08-25T01:10:42.58 0.1 undecidable manual P 138 46.1205 120 0.27 92
IV.NARO.HHZ. 2018-08-25T01:10:42.59 0.6 undecidable manual S 254 11.6772 158 -0.26 49
IV.ATCC.EHZ. 2018-08-25T01:10:42.68 0.1 undecidable manual P 187 50.9157 117 -0.28 91
IV.CPGN.EHZ. 2018-08-25T01:10:41.86 0.3 undecidable manual P 299 36.741 126 0.76 61
IV.ATVO.HHZ. 2018-08-25T01:10:41.28 0.1 undecidable manual P 222 38.1285 125 0 99
IV.BADI.EHZ. 2018-08-25T01:10:41.84 0.1 undecidable manual P 249 40.9257 123 0.21 94
IV.FOSV.EHZ. 2018-08-25T01:10:40.92 0.1 undecidable manual P 175 38.4282 125 -0.39 91
IV.APEC.HHZ. 2018-08-25T01:10:40.13 0.1 undecidable manual P 250 25.8519 137 0.29 95
IV.PARC.HHZ. 2018-08-25T01:10:40.95 0.1 undecidable manual P 272 38.7279 125 -0.4 91
IV.ATFO.HHZ. 2018-08-25T01:10:40.16 0.1 undecidable manual P 202 32.6451 130 -0.44 91
IV.ATPI.EHZ. 2018-08-25T01:10:40.62 0.1 undecidable manual P 231 33.1446 129 -0.04 99
IV.PE3.EHZ. 2018-08-25T01:10:39.09 0.1 positive manual P 289 19.0698 146 -0.1 100
IV.ARVD.HHZ. 2018-08-25T01:10:39.15 0.1 undecidable manual P 132 23.6541 140 -0.47 92
IV.COR1.EHZ. 2018-08-25T01:10:39.80 0.1 undecidable manual P 92 22.4553 141 0.3 95
IV.NARO.HHZ. 2018-08-25T01:10:38.01 0.1 undecidable manual P 254 11.6772 158 -0.64 88
IV.MPAG.HNE. 2018-08-25T01:10:38.26 0.3 undecidable manual P 111 3.2967 173 -0.07 78
IV.FRON.EHZ. 2018-08-25T01:10:38.27 0.1 positive manual P 178 13.5753 155 -0.5 93
IV.PIEI.HHZ. 2018-08-25T01:10:38.58 0.1 undecidable manual P 232 18.87 146 -0.59 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:1.6 0.00016999999999999999 0.8 AML other m 2018-08-25T01:10:42.40
IV.FRON.EHE. ML:1.9 0.000338 0.36 AML other m 2018-08-25T01:10:43.36
IV.FRON.EHN. ML:2.1 0.000634 0.14 AML other m 2018-08-25T01:10:43.42
IV.NARO.HHN. ML:1.5 0.0001555 0.98 AML other m 2018-08-25T01:10:43.44
IV.PIEI.HHN. ML:1.6 0.00013800000000000002 0.62 AML other m 2018-08-25T01:10:43.91
IV.PIEI.HHE. ML:1.8 0.000253 0.76 AML other m 2018-08-25T01:10:44.87
IV.PE3.EHN. ML:2.5 0.001165 0.8 AML other m 2018-08-25T01:10:44.78
IV.PE3.EHE. ML:2.5 0.00124 1.52 AML other m 2018-08-25T01:10:45.93
IV.ARVD.HHE. ML:1.6 0.000155 0.1 AML other m 2018-08-25T01:10:45.35
IV.APEC.HHN. ML:1.8 0.00023649999999999998 0.26 AML other m 2018-08-25T01:10:45.69
IV.ARVD.HHN. ML:1.6 0.0001585 0.12 AML other m 2018-08-25T01:10:45.53
IV.APEC.HHE. ML:1.6 0.0001245 1.18 AML other m 2018-08-25T01:10:46.74
IV.COR1.EHN. ML:2.1 0.00048400000000000006 0.38 AML other m 2018-08-25T01:10:46.47
IV.COR1.EHE. ML:2.0 0.000358 0.76 AML other m 2018-08-25T01:10:46.49
IV.ATFO.HHN. ML:1.8 0.0002125 0.28 AML other m 2018-08-25T01:10:46.74
IV.ATFO.HHE. ML:1.9 0.000223 0.5 AML other m 2018-08-25T01:10:47.22
IV.ATPI.EHE. ML:1.2 0.00004645 1.34 AML other m 2018-08-25T01:10:47.20
IV.ATPI.EHN. ML:1.1 0.00004195 0.44 AML other m 2018-08-25T01:10:47.66
IV.FOSV.EHN. ML:1.6 0.0001215 0.78 AML other m 2018-08-25T01:10:48.55
IV.FOSV.EHE. ML:1.6 0.00011845 1.54 AML other m 2018-08-25T01:10:48.21
IV.PARC.HHE. ML:1.4 0.00006845 0.14 AML other m 2018-08-25T01:10:48.36
IV.ATVO.HHN. ML:1.4 0.0000622 0.42 AML other m 2018-08-25T01:10:48.34
IV.ATVO.HHE. ML:1.4 0.00006675000000000001 0.98 AML other m 2018-08-25T01:10:48.10
IV.PARC.HHN. ML:1.6 0.00011405 0.22 AML other m 2018-08-25T01:10:48.60
IV.BADI.EHE. ML:1.6 0.00010095 0.18 AML other m 2018-08-25T01:10:49.45
IV.EL6.EHE. ML:1.7 0.00012534999999999998 0.84 AML other m 2018-08-25T01:10:50.73
IV.EL6.EHN. ML:1.8 0.00013245 0.58 AML other m 2018-08-25T01:10:51.02
IV.MURB.HHN. ML:1.9 0.00017299999999999998 0.26 AML other m 2018-08-25T01:10:51.07
IV.ATCC.EHN. ML:2.0 0.0002155 0.9 AML other m 2018-08-25T01:10:52.55
IV.ATCC.EHE. ML:2.0 0.0001835 0.74 AML other m 2018-08-25T01:10:52.69
IV.CING.HHE. ML:1.4 0.000056800000000000005 0.56 AML other m 2018-08-25T01:10:52.68
IV.CING.HHN. ML:1.6 0.00008299999999999998 1.52 AML other m 2018-08-25T01:10:52.01
IV.MURB.HHE. ML:1.9 0.0001715 0.5 AML other m 2018-08-25T01:10:53.31
IV.BADI.EHN. ML:1.6 0.00010095 0.6 AML other m 2018-08-25T01:10:54.42
IV.ATTE.HHN. ML:1.6 0.0000706 0.34 AML other m 2018-08-25T01:10:54.52
IV.ATTE.HHE. ML:1.5 0.00006175 0.38 AML other m 2018-08-25T01:10:54.70
IV.ASSB.HHN. ML:1.7 0.00007569999999999998 0.42 AML other m 2018-08-25T01:10:56.47
IV.ASSB.HHE. ML:1.7 0.00007539999999999999 0.3 AML other m 2018-08-25T01:10:57.50
IV.CAFI.HHN. ML:1.5 0.00004975 0.54 AML other m 2018-08-25T01:10:58.40
IV.CAFI.HHE. ML:1.5 0.000042749999999999996 0.7 AML other m 2018-08-25T01:10:58.56
IV.CESI.HHE. ML:1.5 0.0000512 0.78 AML other m 2018-08-25T01:10:58.83
IV.CESI.HHN. ML:1.6 0.00005665 1.22 AML other m 2018-08-25T01:11:02.81
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