Earthquake with magnitude of Md 2.0 on date 09-05-1990 and time 04:36:12 (Italy) in region 6 km SE Pieve Santo Stefano (AR)

A magnitude Md 2.0 earthquake occured in region: 6 km SE Pieve Santo Stefano (AR), on

  • 09-05-1990 02:36:12 (UTC)
  • 09-05-1990 04:36:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6350, 12.1010 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pieve Santo Stefano AR 6 3183 3183
Sansepolcro AR 8 15884 19067
Caprese Michelangelo AR 9 1426 20493
Badia Tedalda AR 11 1087 21580
Anghiari AR 11 5638 27218
San Giustino PG 11 11297 38515
Chiusi della Verna AR 15 2023 40538
Citerna PG 15 3531 44069
Borgo Pace PU 16 606 44675
Monterchi AR 17 1757 46432
Sestino AR 18 1355 47787
Chitignano AR 18 899 48686
Casteldelci RN 18 407 49093
Mercatello sul Metauro PU 19 1378 50471
Verghereto FC 20 1907 52378
Subbiano AR 20 6331 58709

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Arezzo (99543 inhabitants)
57 Km S of Cesena (96758 inhabitants)
60 Km SW of Rimini (147750 inhabitants)
63 Km NW of Perugia (166134 inhabitants)
66 Km S of Forlì (117913 inhabitants)
70 Km E of Firenze (382808 inhabitants)
71 Km E of Siena (53903 inhabitants)
72 Km W of Pesaro (94582 inhabitants)
75 Km S of Faenza (58541 inhabitants)
75 Km E of Scandicci (50609 inhabitants)
78 Km W of Fano (60888 inhabitants)
85 Km E of Prato (191150 inhabitants)
86 Km SE of Imola (69797 inhabitants)
87 Km S of Ravenna (159116 inhabitants)
90 Km NW 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 2.0
ML-VAX 1.7
1990-05-09
02:36:12
43.635 12.101 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 118029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-09 02:36:12 ± 0.438
Latitude 43.6350 ± 0.0622
Longitude 12.1010 ± 0.0191
Depth (km) 10 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 118029

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) 7079.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 221
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00348
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 118029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:49:35

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 118029
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
--.SFI.Z. 1990-05-09T02:36:25.50 10.0 undecidable manual SG 325 0.3219 0.27 0.4
--.PGD.Z. 1990-05-09T02:36:25.71 10.0 undecidable manual SG 311 0.3552 -0.78 0
--.PGD.Z. 1990-05-09T02:36:21.00 10.0 undecidable manual PG 311 0.3552 0.28 1
--.RSM.Z. 1990-05-09T02:36:21.30 10.0 undecidable manual PG 40 0.3885 -0.12 1.5
--.SFI.Z. 1990-05-09T02:36:20.12 10.0 undecidable manual PG 325 0.3219 0.13 1.6
--.CRE.Z. 1990-05-09T02:36:18.31 10.0 undecidable manual SG 262 0.111 0.05 0.7
--.CRE.Z. 1990-05-09T02:36:15.87 10.0 undecidable manual PG 262 0.111 -0.1 1.8
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