Earthquake with magnitude of Md 2.0 on date 12-08-1998 and time 13:33:28 (UTC) in region 3 km S Apecchio (PU)

A magnitude Md 2.0 earthquake occured in region: 3 km S Apecchio (PU), on

  • 12-08-1998 13:33:28 (UTC)
  • 12-08-1998 15:33:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5360, 12.4190 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
Apecchio PU 3 1882 1882
Piobbico PU 10 2029 3911
Pietralunga PG 10 2111 6022
Mercatello sul Metauro PU 14 1378 7400
Sant'Angelo in Vado PU 14 4133 11533
Borgo Pace PU 17 606 12139
CittĂ  di Castello PG 17 39913 52052
Urbania PU 17 7099 59151
Cantiano PU 18 2245 61396
Cagli PU 19 8731 70127
Peglio PU 19 696 70823
San Giustino PG 20 11297 82120

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Arezzo (99543 inhabitants)
48 Km N of Perugia (166134 inhabitants)
58 Km SW of Pesaro (94582 inhabitants)
59 Km SW of Fano (60888 inhabitants)
60 Km S of Rimini (147750 inhabitants)
68 Km NW of Foligno (57155 inhabitants)
68 Km S of Cesena (96758 inhabitants)
82 Km SE of Forlì (117913 inhabitants)
89 Km W of Ancona (100861 inhabitants)
91 Km E of Siena (53903 inhabitants)
94 Km SE of Faenza (58541 inhabitants)
97 Km E of Firenze (382808 inhabitants)
100 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 2.0 1998-08-12
13:33:28
43.536 12.419 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 347889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-08-12 13:33:28 ± 0.236
Latitude 43.5360 ± 0.0204
Longitude 12.4190 ± 0.0120
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 347889

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) 2465.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.00421
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 347889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:25:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SNTG.Z. 1998-08-12T13:33:45.13 10.0 undecidable manual SG 126 0.4662 -0.88 0.2
--.CRE.Z. 1998-08-12T13:33:42.21 10.0 undecidable manual SG 284 0.3441 0.66 0.4
--.ARV.Z. 1998-08-12T13:33:42.98 10.0 undecidable manual SG 95 0.3774 0.15 0.8
--.FB9.Z. 1998-08-12T13:33:40.20 10.0 undecidable manual SG 59 0.2997 0.23 0.8
--.SNTG.Z. 1998-08-12T13:33:39.14 10.0 undecidable manual PG 126 0.4662 0.74 0.6
--.ARV.Z. 1998-08-12T13:33:36.27 10.0 undecidable manual PG 95 0.3774 -0.29 1.8
--.CRE.Z. 1998-08-12T13:33:35.36 10.0 undecidable manual PG 284 0.3441 -0.46 1.4
--.FB9.Z. 1998-08-12T13:33:34.74 10.0 undecidable manual PG 59 0.2997 -0.06 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download