Earthquake with magnitude of Md 1.9 on date 09-05-1990 and time 01:00:56 (UTC) in region 5 km S Badia Tedalda (AR)

A magnitude Md 1.9 earthquake occured in region: 5 km S Badia Tedalda (AR), on

  • 09-05-1990 01:00:56 (UTC)
  • 09-05-1990 03:00:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6600, 12.1930 at 5 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Badia Tedalda AR 5 1087 1087
Borgo Pace PU 8 606 1693
Sestino AR 10 1355 3048
Sansepolcro AR 11 15884 18932
Mercatello sul Metauro PU 12 1378 20310
Pieve Santo Stefano AR 12 3183 23493
San Giustino PG 12 11297 34790
Casteldelci RN 15 407 35197
Belforte all'Isauro PU 16 769 35966
Caprese Michelangelo AR 17 1426 37392
Anghiari AR 17 5638 43030
Sant'Angelo in Vado PU 18 4133 47163
Carpegna PU 18 1674 48837
Pennabilli RN 19 2869 51706
Citerna PG 19 3531 55237
Frontino PU 19 293 55530
Piandimeleto PU 19 2167 57697

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Arezzo (99543 inhabitants)
53 Km S of Cesena (96758 inhabitants)
54 Km SW of Rimini (147750 inhabitants)
63 Km N of Perugia (166134 inhabitants)
64 Km S of Forlì (117913 inhabitants)
64 Km W of Pesaro (94582 inhabitants)
70 Km W of Fano (60888 inhabitants)
74 Km SE of Faenza (58541 inhabitants)
76 Km E of Firenze (382808 inhabitants)
79 Km E of Siena (53903 inhabitants)
82 Km E of Scandicci (50609 inhabitants)
84 Km S of Ravenna (159116 inhabitants)
86 Km SE of Imola (69797 inhabitants)
89 Km NW of Foligno (57155 inhabitants)
91 Km E of Prato (191150 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 1.9
ML-VAX 1.7
1990-05-09
01:00:56
43.66 12.193 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 117909
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-09 01:00:56 ± 0.219
Latitude 43.6600 ± 0.0157
Longitude 12.1930 ± 0.0163
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 117909

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) 2186.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 117909
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:49:30

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 117909
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
--.ASS.Z. 1990-05-09T01:01:21.00 10.0 undecidable manual SG 150 0.6882 0.01 0.6
--.ARV.Z. 1990-05-09T01:01:17.50 10.0 undecidable manual SG 106 0.5661 0.27 0.6
--.PGD.Z. 1990-05-09T01:01:11.81 10.0 undecidable manual SG 302 0.3996 0.05 0.9
--.ARV.Z. 1990-05-09T01:01:09.00 10.0 undecidable manual PG 106 0.5661 0.68 1
--.ASS.Z. 1990-05-09T01:01:09.00 10.0 undecidable manual PG 150 0.6882 -1.49 0.3
--.SFI.Z. 1990-05-09T01:01:09.60 10.0 undecidable manual SG 314 0.3441 -0.1 0.8
--.PGD.Z. 1990-05-09T01:01:04.77 10.0 undecidable manual PG 302 0.3996 -0.4 1.8
--.SFI.Z. 1990-05-09T01:01:03.94 10.0 undecidable manual PG 314 0.3441 -0.04 2.1
--.CRE.Z. 1990-05-09T01:01:03.50 10.0 undecidable manual SG 256 0.1665 0.21 0.8
--.CRE.Z. 1990-05-09T01:01:01.00 10.0 undecidable manual PG 256 0.1665 0.72 1.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download