Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 25-08-2018 and time 01:14:28 (UTC) in region 6 km NE Acqualagna (PU)

A magnitude ML 1.5 earthquake occured in region: 6 km NE Acqualagna (PU), on

  • 25-08-2018 01:14:28 (UTC)
  • 25-08-2018 03:14:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6520, 12.7300 at 30 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 6 4393 4393
Fermignano PU 7 8596 12989
Fossombrone PU 7 9575 22564
Isola del Piano PU 11 594 23158
Urbino PU 11 15019 38177
Sant'Ippolito PU 12 1563 39740
Montefelcino PU 13 2671 42411
Pergola PU 13 6333 48744
Cagli PU 13 8731 57475
Fratte Rosa PU 14 966 58441
Petriano PU 14 2829 61270
Frontone PU 15 1300 62570
Serrungarina PU 16 2634 65204
Barchi PU 16 967 66171
Urbania PU 17 7099 73270
Cartoceto PU 18 7887 81157
Saltara PU 18 6925 88082
Serra Sant'Abbondio PU 18 1027 89109
San Lorenzo in Campo PU 18 3414 92523
Piobbico PU 19 2029 94552
Mombaroccio PU 19 2152 96704
Orciano di Pesaro PU 19 2028 98732
Mondavio PU 19 3810 102542
Peglio PU 19 696 103238
Montecalvo in Foglia PU 20 2718 105956
Monteciccardo PU 20 1690 107646
Montemaggiore al Metauro PU 20 2893 110539

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Fano (60888 inhabitants)
32 Km SW of Pesaro (94582 inhabitants)
47 Km S of Rimini (147750 inhabitants)
64 Km W of Ancona (100861 inhabitants)
67 Km NE of Perugia (166134 inhabitants)
67 Km SE of Cesena (96758 inhabitants)
71 Km E of Arezzo (99543 inhabitants)
77 Km N of Foligno (57155 inhabitants)
84 Km SE of Forlì (117913 inhabitants)
95 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 1.5 2018-08-25
01:14:28		 43.6522 12.7303 30 2019-04-24
14:51:15		 Bollettino Sismico Italiano INGV 67001601
Reviewed
Rev100 		ML 1.5 2018-08-25
01:14:28		 43.6748 12.7618 31 2018-08-25
01:25:18		 Sala Sismica INGV-Roma 60178881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-25 01:14:28 ± 0.21
Latitude 43.6522 ± 0.0090
Longitude 12.7303 ± 0.0112
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 67001601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 848
Semi-minor axis of confidence ellipse (meter) 697
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 132
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.84986
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 67001601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-28 09:10:55

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 60178881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-25 01:25:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2018-08-25T01:14:46.17 0.6 undecidable manual S 201 46.2204 118 1.1 34
IV.MF5.EHZ. 2018-08-25T01:14:46.57 0.6 undecidable manual P 141 94.3389 103 1.34 27
IV.ATCC.EHZ. 2018-08-25T01:14:46.93 0.6 undecidable manual S 188 52.3032 115 0.41 45
IV.ATVO.HHZ. 2018-08-25T01:14:43.85 0.6 undecidable manual S 221 39.7269 123 0.29 47
IV.FOSV.EHZ. 2018-08-25T01:14:43.55 0.6 undecidable manual S 176 39.7269 123 -0.01 49
IV.PARC.HHZ. 2018-08-25T01:14:43.80 0.6 undecidable manual S 270 39.4272 123 0.29 47
IV.ATFO.HHZ. 2018-08-25T01:14:42.26 0.6 undecidable manual S 202 34.1436 127 -0.08 49
IV.FDMO.HHZ. 2018-08-25T01:14:42.13 0.3 undecidable manual P 157 74.0703 107 -0.1 69
IV.APEC.HHZ. 2018-08-25T01:14:41.04 0.6 undecidable manual S 247 27.0507 134 0.14 49
IV.PE3.EHZ. 2018-08-25T01:14:40.39 0.6 undecidable manual S 285 19.3695 144 0.82 40
IV.ARVD.HHZ. 2018-08-25T01:14:40.57 0.6 undecidable manual S 135 24.0537 138 0.22 49
IV.SSFR.HHN. 2018-08-25T01:14:40.25 0.6 undecidable manual S 170 24.3534 138 -0.14 49
IV.ATTE.HHZ. 2018-08-25T01:14:40.43 0.3 undecidable manual P 211 58.7967 112 0.43 66
IV.MURB.HHZ. 2018-08-25T01:14:38.45 0.3 undecidable manual P 201 46.2204 118 0.2 70
IV.ATCC.EHZ. 2018-08-25T01:14:38.96 0.1 undecidable manual P 188 52.3032 115 -0.12 95
IV.FRON.EHZ. 2018-08-25T01:14:38.85 0.6 undecidable manual S 181 14.874 151 -0.08 51
IV.NARO.HHZ. 2018-08-25T01:14:38.40 0.6 undecidable manual S 249 12.876 155 -0.28 49
IV.PARC.HHZ. 2018-08-25T01:14:37.20 0.1 undecidable manual P 270 39.4272 123 -0.15 96
IV.ATVO.HHZ. 2018-08-25T01:14:37.05 0.1 undecidable manual P 221 39.7269 123 -0.32 93
IV.FOSV.EHZ. 2018-08-25T01:14:37.11 0.1 undecidable manual P 176 39.7269 123 -0.27 94
IV.MPAG.EHZ. 2018-08-25T01:14:37.99 0.6 undecidable manual S 137 3.4965 173 0.01 52
IV.ATPI.EHZ. 2018-08-25T01:14:36.40 0.3 undecidable manual P 230 34.5432 127 -0.32 70
IV.COR1.EHZ. 2018-08-25T01:14:36.00 0.1 undecidable manual P 96 21.7671 141 0.7 84
IV.ATFO.HHZ. 2018-08-25T01:14:36.37 0.1 undecidable manual P 202 34.1436 127 -0.3 94
IV.PE3.EHZ. 2018-08-25T01:14:35.19 0.1 positive manual P 285 19.3695 144 0.12 100
IV.ARVD.HHZ. 2018-08-25T01:14:35.37 0.1 undecidable manual P 135 24.0537 138 -0.16 99
IV.SSFR.HHN. 2018-08-25T01:14:35.19 0.1 undecidable manual P 170 24.3534 138 -0.36 95
IV.APEC.HHZ. 2018-08-25T01:14:35.69 0.1 positive manual P 247 27.0507 134 -0.15 98
IV.FRON.EHZ. 2018-08-25T01:14:34.46 0.1 undecidable manual P 181 14.874 151 -0.24 99
IV.NARO.HHZ. 2018-08-25T01:14:34.19 0.1 undecidable manual P 249 12.876 155 -0.37 96
IV.MPAG.EHZ. 2018-08-25T01:14:34.22 0.3 undecidable manual P 137 3.4965 173 0.06 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHE. ML:1.3 0.00008360000000000001 1.08 AML other m 2018-08-25T01:14:39.63
IV.NARO.HHN. ML:1.3 0.00008335 0.78 AML other m 2018-08-25T01:14:39.60
IV.PE3.EHE. ML:2.2 0.0006590000000000001 0.3 AML other m 2018-08-25T01:14:40.69
IV.PE3.EHN. ML:2.3 0.000856 0.4 AML other m 2018-08-25T01:14:40.64
IV.ARVD.HHN. ML:1.4 0.0000856 0.98 AML other m 2018-08-25T01:14:41.05
IV.ARVD.HHE. ML:1.2 0.0000609 1.56 AML other m 2018-08-25T01:14:41.98
IV.APEC.HHN. ML:1.4 0.00008690000000000001 0.22 AML other m 2018-08-25T01:14:41.46
IV.APEC.HHE. ML:1.4 0.00008365 0.3 AML other m 2018-08-25T01:14:42.18
IV.ATFO.HHN. ML:1.8 0.00017299999999999998 0.84 AML other m 2018-08-25T01:14:42.50
IV.ATFO.HHE. ML:1.6 0.00013550000000000001 1.52 AML other m 2018-08-25T01:14:42.99
IV.ATVO.HHN. ML:1.5 0.00007939999999999999 1.36 AML other m 2018-08-25T01:14:44.10
IV.PARC.HHE. ML:1.2 0.000046700000000000003 0.3 AML other m 2018-08-25T01:14:44.22
IV.PARC.HHN. ML:1.5 0.000091 0.26 AML other m 2018-08-25T01:14:44.25
IV.ATVO.HHE. ML:1.3 0.000048549999999999994 0.7 AML other m 2018-08-25T01:14:44.72
IV.MURB.HHN. ML:1.8 0.00016599999999999997 0.24 AML other m 2018-08-25T01:14:46.83
IV.MURB.HHE. ML:1.8 0.000131 1.7 AML other m 2018-08-25T01:14:46.92
IV.ATCC.EHN. ML:1.7 0.00009525 1.3 AML other m 2018-08-25T01:14:47.78
IV.ATCC.EHE. ML:1.7 0.00009475 0.48 AML other m 2018-08-25T01:14:47.70
IV.ATTE.HHE. ML:1.4 0.0000444 0.74 AML other m 2018-08-25T01:14:49.32
IV.ATTE.HHN. ML:1.5 0.0000623 0.42 AML other m 2018-08-25T01:14:49.92
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