Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 18-03-2012 and time 02:28:58 (Italy) in region 4 km N Cagli (PU)

A magnitude ML 2.1 earthquake occured in region: 4 km N Cagli (PU), on

  • 18-03-2012 01:28:58 (UTC)
  • 18-03-2012 02:28:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5790, 12.6590 at 53 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
Cagli PU 4 8731 8731
Acqualagna PU 4 4393 13124
Frontone PU 10 1300 14424
Fermignano PU 11 8596 23020
Cantiano PU 12 2245 25265
Piobbico PU 12 2029 27294
Serra Sant'Abbondio PU 13 1027 28321
Pergola PU 14 6333 34654
Urbania PU 15 7099 41753
Urbino PU 16 15019 56772
Fossombrone PU 17 9575 66347
Peglio PU 19 696 67043
Apecchio PU 19 1882 68925
Scheggia e Pascelupo PG 19 1393 70318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Fano (60888 inhabitants)
42 Km SW of Pesaro (94582 inhabitants)
54 Km S of Rimini (147750 inhabitants)
57 Km NE of Perugia (166134 inhabitants)
64 Km E of Arezzo (99543 inhabitants)
69 Km N of Foligno (57155 inhabitants)
70 Km W of Ancona (100861 inhabitants)
71 Km SE of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
100 Km SE of Ravenna (159116 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 2012-03-18
01:28:58		 43.579 12.659 53 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1349929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-03-18 01:28:58 ± 0.2
Latitude 43.5790 ± 0.0117
Longitude 12.6590 ± 0.0137
Depth (km) 53 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1349929

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1052
Semi-minor axis of confidence ellipse (meter) 1003
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 154
Circular confidence region, given by single value of horizontal uncertainty (meter) 1702.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.52
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91101
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 25
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1349929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:56:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTGR.SHZ. 2012-03-18T01:30:04.13 10.0 undecidable manual Pg 0 0 0
IV.ORI.HHN. 2012-03-18T01:29:52.68 10.0 undecidable manual Pg 0 0 0
IV.FIR.HHN. 2012-03-18T01:29:41.43 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHE. 2012-03-18T01:29:41.70 10.0 undecidable manual Pg 0 0 0
IV.SMA1.EHN. 2012-03-18T01:29:37.25 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2012-03-18T01:29:22.06 0.6 undecidable manual Sg 150 69.4749 0.255 44
IV.ATCC.EHZ. 2012-03-18T01:29:18.01 0.6 undecidable manual Sg 182 43.7229 0.873 38
IV.CPGN.EHN. 2012-03-18T01:29:18.32 10.0 undecidable manual Pg 0 0 0
IV.VMG.SHZ. 2012-03-18T01:29:17.09 10.0 undecidable manual Pg 0 0 0
IV.SNTG.HHE. 2012-03-18T01:29:17.30 0.6 undecidable manual Sg 148 42.5241 0.355 45
IV.ATMC.EHZ. 2012-03-18T01:29:17.05 0.6 undecidable manual Sg 249 40.2264 0.466 45
IV.BADI.EHZ. 2012-03-18T01:29:16.31 0.6 undecidable manual Sg 257 34.1436 0.617 43
IV.MURB.HHZ. 2012-03-18T01:29:16.45 0.3 undecidable manual Sg 197 36.741 0.4 68
IV.PARC.HHE. 2012-03-18T01:29:16.66 0.6 undecidable manual Sg 283 34.6431 0.91 38
IV.SACS.HHN. 2012-03-18T01:29:15.34 0.3 undecidable manual Pg 217 101.121 -0.464 59
IV.ATVO.HHZ. 2012-03-18T01:29:15.28 0.3 undecidable manual Sg 223 29.8479 0.169 72
IV.NRCA.HHN. 2012-03-18T01:29:15.15 0.3 undecidable manual Pg 156 90.5427 0.612 57
IV.ILLI.HHN. 2012-03-18T01:29:14.31 10.0 undecidable manual Pg 0 0 0
IV.ARVD.HHE. 2012-03-18T01:29:14.39 0.3 undecidable manual Sg 111 24.4533 -0.092 74
IV.ATPC.HHZ. 2012-03-18T01:29:14.24 0.6 undecidable manual Sg 236 19.5693 0.248 48
IV.SFI.EHE. 2012-03-18T01:29:13.94 0.1 undecidable manual Pg 299 74.37 1.294 58
IV.FSSB.HHZ. 2012-03-18T01:29:13.91 0.3 undecidable manual Sg 37 15.873 0.223 73
IV.MGAB.HHZ. 2012-03-18T01:29:13.85 0.1 undecidable manual Pg 211 86.1471 -0.162 86
IV.FRON.EHZ. 2012-03-18T01:29:13.43 0.6 undecidable manual Sg 142 8.6802 0.161 50
IV.GUMA.HHN. 2012-03-18T01:29:13.95 0.3 undecidable manual Pg 136 79.1652 0.755 55
IV.MPAG.EHZ. 2012-03-18T01:29:13.14 0.3 undecidable manual Sg 56 9.879 -0.181 74
IV.PIEI.HHZ. 2012-03-18T01:29:12.48 0.3 undecidable manual Sg 244 11.0778 -0.901 58
IV.CESI.HHE. 2012-03-18T01:29:11.80 0.3 undecidable manual Pg 163 66.6777 0.024 69
IV.PTF.SHZ. 2012-03-18T01:29:11.84 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHZ. 2012-03-18T01:29:11.21 0.1 undecidable manual Pg 150 69.4749 -0.87 72
IV.CING.HHZ. 2012-03-18T01:29:10.34 0.1 undecidable manual Pg 117 48.7179 0.47 86
IV.CAFI.HHN. 2012-03-18T01:29:10.77 0.1 undecidable manual Pg 244 62.2932 -0.511 83
IV.CRE.HHZ. 2012-03-18T01:29:10.68 0.3 undecidable manual Pg 275 56.9985 -0.03 70
IV.SNTG.HHE. 2012-03-18T01:29:09.02 0.3 undecidable manual Pg 148 42.5241 -0.254 69
IV.ATMC.EHZ. 2012-03-18T01:29:09.04 0.1 undecidable manual Pg 249 40.2264 -0.025 96
IV.PESA.HHN. 2012-03-18T01:29:09.82 0.3 undecidable manual Pg 20 42.7239 0.53 64
IV.ATCC.EHZ. 2012-03-18T01:29:09.42 0.3 undecidable manual Pg 182 43.7229 0.035 72
IV.ATTE.HHZ. 2012-03-18T01:29:09.82 0.3 undecidable manual Pg 210 48.9177 -0.065 71
IV.ATVO.HHZ. 2012-03-18T01:29:08.17 0.1 positive manual Pg 223 29.8479 -0.045 98
IV.PARC.HHE. 2012-03-18T01:29:08.49 0.3 undecidable manual Pg 283 34.6431 -0.094 72
IV.BADI.EHZ. 2012-03-18T01:29:08.82 0.1 undecidable manual Pg 257 34.1436 0.269 93
IV.MURB.HHZ. 2012-03-18T01:29:08.85 0.1 undecidable manual Pg 197 36.741 0.093 96
IV.ATPC.HHZ. 2012-03-18T01:29:07.09 0.1 undecidable manual Pg 236 19.5693 -0.479 91
IV.FSSB.HHZ. 2012-03-18T01:29:07.29 0.1 positive manual Pg 37 15.873 -0.103 100
IV.ARVD.HHE. 2012-03-18T01:29:07.61 0.1 undecidable manual Pg 111 24.4533 -0.242 96
IV.MPAG.EHZ. 2012-03-18T01:29:06.88 0.1 positive manual Pg 56 9.879 -0.301 97
IV.PIEI.HHZ. 2012-03-18T01:29:06.44 0.1 positive manual Pg 244 11.0778 -0.776 82
IV.FRON.EHZ. 2012-03-18T01:29:06.58 0.1 positive manual Pg 142 8.6802 -0.572 90
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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