Earthquake with magnitude of Md 2.0 on date 09-05-1990 and time 00:34:17 (UTC) in region 7 km S Badia Tedalda (AR)

A magnitude Md 2.0 earthquake occured in region: 7 km S Badia Tedalda (AR), on

  • 09-05-1990 00:34:17 (UTC)
  • 09-05-1990 02:34:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6410, 12.1780 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 7 1087 1087
Sansepolcro AR 8 15884 16971
Borgo Pace PU 10 606 17577
San Giustino PG 10 11297 28874
Pieve Santo Stefano AR 11 3183 32057
Sestino AR 12 1355 33412
Mercatello sul Metauro PU 13 1378 34790
Anghiari AR 15 5638 40428
Caprese Michelangelo AR 15 1426 41854
Citerna PG 17 3531 45385
Casteldelci RN 17 407 45792
Monterchi AR 18 1757 47549
Belforte all'Isauro PU 18 769 48318
Sant'Angelo in Vado PU 19 4133 52451

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Arezzo (99543 inhabitants)
56 Km S of Cesena (96758 inhabitants)
56 Km SW of Rimini (147750 inhabitants)
62 Km N of Perugia (166134 inhabitants)
66 Km S of Forlì (117913 inhabitants)
66 Km W of Pesaro (94582 inhabitants)
71 Km W of Fano (60888 inhabitants)
75 Km E of Firenze (382808 inhabitants)
76 Km SE of Faenza (58541 inhabitants)
77 Km E of Siena (53903 inhabitants)
81 Km E of Scandicci (50609 inhabitants)
86 Km S of Ravenna (159116 inhabitants)
87 Km NW of Foligno (57155 inhabitants)
88 Km SE of Imola (69797 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 2.0
ML-VAX 1.6
1990-05-09
00:34:17
43.641 12.178 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 117859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-09 00:34:17 ± 0.046
Latitude 43.6410 ± 0.0040
Longitude 12.1780 ± 0.0032
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 117859

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) 513.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00510
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 117859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:49:27

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 117859
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
--.ARV.Z. 1990-05-09T00:34:38.50 10.0 undecidable manual SG 103 0.5661 0.03 0.6
--.PGD.Z. 1990-05-09T00:34:32.97 10.0 undecidable manual SG 305 0.3996 0.09 0.4
--.SFI.Z. 1990-05-09T00:34:31.00 10.0 undecidable manual SG 317 0.3552 0.01 0.7
--.ARV.Z. 1990-05-09T00:34:29.50 10.0 undecidable manual PG 103 0.5661 0.01 1.7
--.PGD.Z. 1990-05-09T00:34:26.00 10.0 undecidable manual PG 305 0.3996 -0.26 0.3
--.SFI.Z. 1990-05-09T00:34:25.19 10.0 undecidable manual PG 317 0.3552 0.02 1.8
--.CRE.Z. 1990-05-09T00:34:24.00 10.0 undecidable manual SG 262 0.1665 0.17 0.4
--.CRE.Z. 1990-05-09T00:34:21.00 10.0 undecidable manual PG 262 0.1665 -0.04 2
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