Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.2 on date 18-10-1990 and time 11:27:04 (Italy) in region 3 km N Petriano (PU)

A magnitude Md 2.2 earthquake occured in region: 3 km N Petriano (PU), on

  • 18-10-1990 10:27:04 (UTC)
  • 18-10-1990 11:27:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8100, 12.7230 at 10 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
Petriano PU 3 2829 2829
Montegridolfo RN 6 1012 3841
Mondaino RN 7 1394 5235
Vallefoglia PU 7 15018 20253
Monteciccardo PU 7 1690 21943
Montelabbate PU 7 6938 28881
Montecalvo in Foglia PU 7 2718 31599
Saludecio RN 8 3120 34719
Isola del Piano PU 9 594 35313
Tavullia PU 10 8003 43316
Mombaroccio PU 11 2152 45468
Tavoleto PU 11 867 46335
Urbino PU 12 15019 61354
Auditore PU 12 1566 62920
Montefelcino PU 12 2671 65591
Montefiore Conca RN 13 2269 67860
Morciano di Romagna RN 13 7045 74905
Cartoceto PU 14 7887 82792
Serrungarina PU 14 2634 85426
San Giovanni in Marignano RN 15 9417 94843
Fossombrone PU 15 9575 104418
Gradara PU 15 4835 109253
Saltara PU 15 6925 116178
Gemmano RN 15 1158 117336
San Clemente RN 16 5577 122913
Fermignano PU 16 8596 131509
Cattolica RN 17 17125 148634
Gabicce Mare PU 18 5781 154415
Sant'Ippolito PU 18 1563 155978
Misano Adriatico RN 18 13014 168992
Sassocorvaro PU 19 3504 172496
Montescudo - Monte Colombo RN 19 6779 179275
Pesaro PU 19 94582 273857
Sassofeltrio PU 19 1388 275245
Mercatino Conca PU 20 1086 276331
Montemaggiore al Metauro PU 20 2893 279224
Coriano RN 20 10502 289726

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km SW of Pesaro (94582 inhabitants)
24 Km W of Fano (60888 inhabitants)
31 Km SE of Rimini (147750 inhabitants)
53 Km SE of Cesena (96758 inhabitants)
68 Km W of Ancona (100861 inhabitants)
71 Km SE of Forlì (117913 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
80 Km SE of Ravenna (159116 inhabitants)
83 Km NE of Perugia (166134 inhabitants)
86 Km SE of Faenza (58541 inhabitants)
95 Km N of Foligno (57155 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 		Md 2.2
ML-VAX 1.7 		1990-10-18
10:27:04		 43.81 12.723 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 128839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-18 10:27:04 ± 0.445
Latitude 43.8100 ± 0.0265
Longitude 12.7230 ± 0.0284
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 128839

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3726.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.00826
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 128839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:59:49

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 128839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.RM8.Z. 1990-10-18T10:27:35.90 10.0 undecidable manual SG 157 0.9213 -0.03 0.7
--.ASS.Z. 1990-10-18T10:27:29.50 10.0 undecidable manual SG 184 0.7437 -0.77 0.4
--.PGD.Z. 1990-10-18T10:27:29.50 10.0 undecidable manual SG 275 0.7215 -0.01 0.8
--.CIO.Z. 1990-10-18T10:27:28.80 10.0 undecidable manual SG 153 0.6882 0.55 0.6
--.SFI.Z. 1990-10-18T10:27:27.36 10.0 undecidable manual SG 278 0.6327 0.64 0.5
--.CRE.Z. 1990-10-18T10:27:25.88 10.0 undecidable manual SG 251 0.5883 0.72 0.3
--.RM8.Z. 1990-10-18T10:27:22.90 10.0 undecidable manual PG 157 0.9213 -0.48 1
--.ASS.Z. 1990-10-18T10:27:19.00 10.0 undecidable manual PG 184 0.7437 -0.3 1.6
--.ARV.Z. 1990-10-18T10:27:19.95 10.0 undecidable manual SG! 152 0.3441 2.51 0
--.PGD.Z. 1990-10-18T10:27:18.70 10.0 undecidable manual PG 275 0.7215 -0.16 1.7
--.CIO.Z. 1990-10-18T10:27:17.47 10.0 undecidable manual PG 153 0.6882 -0.67 0.8
--.CRE.Z. 1990-10-18T10:27:16.57 10.0 undecidable manual PG 251 0.5883 0.22 1.9
--.SFI.Z. 1990-10-18T10:27:16.93 10.0 undecidable manual PG 278 0.6327 -0.32 1.5
--.ARV.Z. 1990-10-18T10:27:12.94 10.0 positive manual PG 152 0.3441 1.05 1.3
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