Earthquake with magnitude of Md 2.3 on date 15-01-1998 and time 09:09:47 (UTC) in region 5 km NE Sansepolcro (AR)

A magnitude Md 2.3 earthquake occured in region: 5 km NE Sansepolcro (AR), on

  • 15-01-1998 09:09:47 (UTC)
  • 15-01-1998 10:09:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6170, 12.1670 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
Sansepolcro AR 6 15884 15884
San Giustino PG 8 11297 27181
Badia Tedalda AR 10 1087 28268
Borgo Pace PU 11 606 28874
Pieve Santo Stefano AR 12 3183 32057
Anghiari AR 12 5638 37695
Citerna PG 14 3531 41226
Mercatello sul Metauro PU 14 1378 42604
Sestino AR 15 1355 43959
Caprese Michelangelo AR 15 1426 45385
Monterchi AR 15 1757 47142
CittĂ  di Castello PG 19 39913 87055
Casteldelci RN 20 407 87462
Monte Santa Maria Tiberina PG 20 1183 88645

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Arezzo (99543 inhabitants)
58 Km S of Cesena (96758 inhabitants)
59 Km SW of Rimini (147750 inhabitants)
59 Km NW of Perugia (166134 inhabitants)
68 Km S of Forlì (117913 inhabitants)
68 Km W of Pesaro (94582 inhabitants)
73 Km W of Fano (60888 inhabitants)
75 Km E of Siena (53903 inhabitants)
75 Km E of Firenze (382808 inhabitants)
78 Km SE of Faenza (58541 inhabitants)
81 Km E of Scandicci (50609 inhabitants)
85 Km NW of Foligno (57155 inhabitants)
89 Km S of Ravenna (159116 inhabitants)
90 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 2.3
ML-VAX 1.5
1998-01-15
09:09:47
43.617 12.167 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 320779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-01-15 09:09:47 ± 0.235
Latitude 43.6170 ± 0.0195
Longitude 12.1670 ± 0.0134
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 320779

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) 2423.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00583
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 320779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:00:45

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 320779
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
--.CSNT.Z. 1998-01-15T09:10:10.34 10.0 undecidable manual SG 257 0.6438 -0.01 0.6
--.ARV.Z. 1998-01-15T09:10:06.88 10.0 undecidable manual SG 101 0.5661 -1.05 0.2
--.FB9.Z. 1998-01-15T09:10:03.45 10.0 undecidable manual SG 80 0.444 -0.4 0.8
--.CSNT.Z. 1998-01-15T09:10:02.50 10.0 undecidable manual PG 257 0.6438 1.34 0.4
--.RSM.Z. 1998-01-15T09:10:02.40 10.0 undecidable manual SG 33 0.3663 0.59 0.5
--.SFI.Z. 1998-01-15T09:10:00.80 10.0 undecidable manual SG 321 0.3552 -0.47 0.6
--.ARV.Z. 1998-01-15T09:10:00.00 10.0 undecidable manual PG 101 0.5661 0.68 1.2
--.FB9.Z. 1998-01-15T09:09:56.24 10.0 undecidable manual PG 80 0.444 -0.72 1.2
--.SFI.Z. 1998-01-15T09:09:55.37 10.0 undecidable manual PG 321 0.3552 -0.1 2.2
--.RSM.Z. 1998-01-15T09:09:55.93 10.0 undecidable manual PG 33 0.3663 0.36 1.9
--.CRE.Z. 1998-01-15T09:09:53.90 10.0 undecidable manual SG 270 0.1554 -0.58 0.4
--.CRE.Z. 1998-01-15T09:09:51.47 10.0 undecidable manual PG 270 0.1554 -0.08 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