Earthquake with magnitude of Md 2.2 on date 02-01-1988 and time 07:51:56 (Italy) in region 2 km SE Acqualagna (PU)

A magnitude Md 2.2 earthquake occured in region: 2 km SE Acqualagna (PU), on

  • 02-01-1988 06:51:56 (UTC)
  • 02-01-1988 07:51:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6020, 12.6870 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
Acqualagna PU 2 4393 4393
Cagli PU 7 8731 13124
Fermignano PU 9 8596 21720
Frontone PU 11 1300 23020
Pergola PU 13 6333 29353
Fossombrone PU 14 9575 38928
Serra Sant'Abbondio PU 14 1027 39955
Piobbico PU 14 2029 41984
Urbino PU 14 15019 57003
Cantiano PU 15 2245 59248
Urbania PU 15 7099 66347
Isola del Piano PU 17 594 66941
Sant'Ippolito PU 18 1563 68504
Fratte Rosa PU 18 966 69470
Peglio PU 19 696 70166
Montefelcino PU 19 2671 72837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Fano (60888 inhabitants)
39 Km SW of Pesaro (94582 inhabitants)
52 Km S of Rimini (147750 inhabitants)
60 Km NE of Perugia (166134 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
67 Km W of Ancona (100861 inhabitants)
69 Km SE of Cesena (96758 inhabitants)
72 Km N of Foligno (57155 inhabitants)
86 Km SE of Forlì (117913 inhabitants)
99 Km SE of Ravenna (159116 inhabitants)
100 Km SE of Faenza (58541 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 2.2 1988-01-02
06:51:56
43.602 12.687 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 60289
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-01-02 06:51:56 ± 0.357
Latitude 43.6020 ± 0.0281
Longitude 12.6870 ± 0.0291
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 60289

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) 3903.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00672
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 60289
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:57:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PGD.Z. 1988-01-02T06:52:23.53 10.0 undecidable manual SG 291 0.7437 0.69 0.4
--.CM8.Z. 1988-01-02T06:52:17.21 10.0 undecidable manual SG 140 0.5217 1.52 0.1
--.ASS.Z. 1988-01-02T06:52:15.67 10.0 undecidable manual SG 182 0.5439 -0.49 0.6
--.PGD.Z. 1988-01-02T06:52:11.81 10.0 undecidable manual PG 291 0.7437 -0.07 1.5
--.CM8.Z. 1988-01-02T06:52:07.98 10.0 undecidable manual PG 140 0.5217 0.23 1.8
--.ASS.Z. 1988-01-02T06:52:07.45 10.0 undecidable manual PG 182 0.5439 -0.57 1.3
--.ARV.Z. 1988-01-02T06:52:06.19 10.0 undecidable manual SG 119 0.2109 0.53 0.6
--.ARV.Z. 1988-01-02T06:52:01.14 10.0 negative manual PG 119 0.2109 -0.82 1.8
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