Earthquake with magnitude of Md 2.2 on date 01-07-1988 and time 23:00:51 (Italy) in region 5 km E Valtopina (PG)

A magnitude Md 2.2 earthquake occured in region: 5 km E Valtopina (PG), on

  • 01-07-1988 21:00:51 (UTC)
  • 01-07-1988 23:00:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0620, 12.8210 at 7 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
Valtopina PG 5 1398 1398
Nocera Umbra PG 6 5839 7237
Serravalle di Chienti MC 11 1070 8307
Sefro MC 14 422 8729
Spello PG 14 8645 17374
Foligno PG 15 57155 74529
Monte Cavallo MC 17 145 74674
Assisi PG 17 28299 102973
Fiuminata MC 17 1402 104375
Muccia MC 18 915 105290
Pioraco MC 19 1134 106424
Pieve Torina MC 19 1458 107882
Gualdo Tadino PG 19 15208 123090

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
57 Km N of Terni (111501 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
89 Km S of Fano (60888 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
95 Km S of Pesaro (94582 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 1988-07-01
21:00:51
43.062 12.821 7 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 72669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-01 21:00:51 ± 0.177
Latitude 43.0620 ± 0.0136
Longitude 12.8210 ± 0.0077
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 72669

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) 1638.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00615
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 72669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:08:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1988-07-01T21:01:15.00 10.0 undecidable manual SG 188 0.6882 -0.8 0
--.ARV.Z. 1988-07-01T21:01:08.61 10.0 undecidable manual SG 11 0.444 0.49 0.1
--.MNS.Z. 1988-07-01T21:01:06.00 10.0 undecidable manual PG 188 0.6882 0.52 0.2
--.SS8.Z. 1988-07-01T21:01:03.46 10.0 undecidable manual SG 100 0.2997 0.13 0.8
--.CM8.Z. 1988-07-01T21:01:02.26 10.0 undecidable manual SG 60 0.2664 0.2 0.7
--.ARV.Z. 1988-07-01T21:01:00.74 10.0 undecidable manual PG 11 0.444 -0.3 0.8
--.SS8.Z. 1988-07-01T21:00:58.24 10.0 undecidable manual PG 100 0.2997 -0.02 1.5
--.CM8.Z. 1988-07-01T21:00:57.37 10.0 positive manual PG 60 0.2664 -0.16 2.5
--.ASS.Z. 1988-07-01T21:00:56.55 10.0 undecidable manual SG 269 0.1221 -0.16 0.5
--.ASS.Z. 1988-07-01T21:00:54.51 10.0 positive manual PG 269 0.1221 0.05 2.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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