Earthquake with magnitude of Md 1.9 on date 02-03-1988 and time 10:43:46 (Italy) in region 3 km NW Gualdo Tadino (PG)

A magnitude Md 1.9 earthquake occured in region: 3 km NW Gualdo Tadino (PG), on

  • 02-03-1988 09:43:46 (UTC)
  • 02-03-1988 10:43:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2550, 12.7630 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
Gualdo Tadino PG 3 15208 15208
Fossato di Vico PG 5 2840 18048
Sigillo PG 9 2404 20452
Costacciaro PG 12 1216 21668
Fabriano AN 15 31480 53148
Esanatoglia MC 15 2034 55182
Fiuminata MC 16 1402 56584
Nocera Umbra PG 16 5839 62423
Valfabbrica PG 17 3389 65812
Scheggia e Pascelupo PG 18 1393 67205
Gubbio PG 19 32216 99421
Sefro MC 19 422 99843
Cerreto d'Esi AN 20 3817 103660
Pioraco MC 20 1134 104794

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Foligno (57155 inhabitants)
35 Km E of Perugia (166134 inhabitants)
69 Km SW of Fano (60888 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
74 Km S of Pesaro (94582 inhabitants)
75 Km E of Arezzo (99543 inhabitants)
78 Km N of Terni (111501 inhabitants)
91 Km S of Rimini (147750 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 1.9 1988-03-02
09:43:46
43.255 12.763 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 63759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-03-02 09:43:46 ± 0.079
Latitude 43.2550 ± 0.0049
Longitude 12.7630 ± 0.0116
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 63759

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) 1087.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 185
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00251
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 63759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:00:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-03-02T09:43:57.63 10.0 undecidable manual SG 28 0.2664 0.04 0.7
--.CM8.Z. 1988-03-02T09:43:57.52 10.0 undecidable manual SG 102 0.2775 -0.33 0.1
--.ASS.Z. 1988-03-02T09:43:55.00 10.0 undecidable manual SG 202 0.2109 -0.01 0.8
--.CM8.Z. 1988-03-02T09:43:53.41 10.0 undecidable manual PG 102 0.2775 0.23 0.6
--.ARV.Z. 1988-03-02T09:43:52.95 10.0 undecidable manual PG 28 0.2664 -0.07 1.7
--.ASS.Z. 1988-03-02T09:43:51.50 10.0 undecidable manual PG 202 0.2109 -0.04 2
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