Earthquake with magnitude of Md 2.4 on date 08-05-1990 and time 23:53:19 (UTC) in region 3 km NE Anghiari (AR)

A magnitude Md 2.4 earthquake occured in region: 3 km NE Anghiari (AR), on

  • 08-05-1990 23:53:19 (UTC)
  • 09-05-1990 01:53:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5700, 12.0700 at 21 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
Anghiari AR 3 5638 5638
Sansepolcro AR 6 15884 21522
Citerna PG 9 3531 25053
San Giustino PG 9 11297 36350
Monterchi AR 10 1757 38107
Caprese Michelangelo AR 11 1426 39533
Pieve Santo Stefano AR 11 3183 42716
Subbiano AR 16 6331 49047
Monte Santa Maria Tiberina PG 17 1183 50230
Capolona AR 17 5438 55668
Badia Tedalda AR 18 1087 56755
Chiusi della Verna AR 18 2023 58778
Chitignano AR 18 899 59677
CittĂ  di Castello PG 18 39913 99590
Arezzo AR 19 99543 199133

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Arezzo (99543 inhabitants)
58 Km NW of Perugia (166134 inhabitants)
65 Km S of Cesena (96758 inhabitants)
66 Km E of Siena (53903 inhabitants)
68 Km SW of Rimini (147750 inhabitants)
69 Km E of Firenze (382808 inhabitants)
73 Km S of Forlì (117913 inhabitants)
74 Km E of Scandicci (50609 inhabitants)
78 Km W of Pesaro (94582 inhabitants)
81 Km S of Faenza (58541 inhabitants)
82 Km W of Fano (60888 inhabitants)
85 Km NW of Foligno (57155 inhabitants)
85 Km E of Prato (191150 inhabitants)
92 Km SE of Imola (69797 inhabitants)
95 Km S 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
Md 2.4
ML-VAX 1.9
1990-05-08
23:53:19
43.57 12.07 21 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 117789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-08 23:53:19 ± 0.318
Latitude 43.5700 ± 0.0162
Longitude 12.0700 ± 0.0245
Depth (km) 21 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 117789

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) 2671.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00591
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 117789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:49:24

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 117789
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. 1990-05-08T23:53:43.59 10.0 undecidable manual SG 139 0.6549 0.88 0
--.ARV.Z. 1990-05-08T23:53:41.31 10.0 undecidable manual SG 96 0.6327 -0.66 0.1
--.RSM.Z. 1990-05-08T23:53:37.19 10.0 undecidable manual SG 37 0.444 1 0
--.PGD.Z. 1990-05-08T23:53:35.00 10.0 undecidable manual SG 320 0.3885 0.55 0.3
--.SFI.Z. 1990-05-08T23:53:33.44 10.0 undecidable manual SG 334 0.3663 -0.26 0.6
--.ASS.Z. 1990-05-08T23:53:32.88 10.0 undecidable manual PG 139 0.6549 0.06 1.5
--.ARV.Z. 1990-05-08T23:53:32.12 10.0 undecidable manual PG 96 0.6327 -0.27 1.2
--.PGD.Z. 1990-05-08T23:53:28.50 10.0 undecidable manual PG 320 0.3885 0 1.9
--.RSM.Z. 1990-05-08T23:53:28.90 10.0 undecidable manual PG 37 0.444 -0.15 1.8
--.SFI.Z. 1990-05-08T23:53:27.52 10.0 undecidable manual PG 334 0.3663 -0.09 1.9
--.CRE.Z. 1990-05-08T23:53:26.60 10.0 undecidable manual SG 299 0.0999 -0.16 0.7
--.CRE.Z. 1990-05-08T23:53:23.53 10.0 undecidable manual PG 299 0.0999 -0.08 1.9
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