Earthquake with magnitude of Md 2.1 on date 10-07-1988 and time 20:45:07 (Italy) in region 4 km E Bettona (PG)

A magnitude Md 2.1 earthquake occured in region: 4 km E Bettona (PG), on

  • 10-07-1988 18:45:07 (UTC)
  • 10-07-1988 20:45:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0020, 12.5330 at 8 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
Bettona PG 4 4367 4367
Cannara PG 4 4305 8672
Bastia Umbra PG 7 21874 30546
Torgiano PG 8 6725 37271
Deruta PG 9 9669 46940
Bevagna PG 10 5081 52021
Assisi PG 10 28299 80320
Gualdo Cattaneo PG 10 6155 86475
Spello PG 11 8645 95120
Collazzone PG 14 3473 98593
Foligno PG 15 57155 155748
Montefalco PG 15 5679 161427
Perugia PG 17 166134 327561
Valfabbrica PG 19 3389 330950
Marsciano PG 19 18902 349852
Giano dell'Umbria PG 19 3846 353698
Valtopina PG 19 1398 355096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Foligno (57155 inhabitants)
17 Km SE of Perugia (166134 inhabitants)
50 Km N of Terni (111501 inhabitants)
74 Km NE of Viterbo (67173 inhabitants)
74 Km SE of Arezzo (99543 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 2.1 1988-07-10
18:45:07
43.002 12.533 8 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 73079
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-10 18:45:07 ± 0.03
Latitude 43.0020 ± 0.0006
Longitude 12.5330 ± 0.0031
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 73079

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) 264.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 220
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
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.00559
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 73079
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1988-07-10T18:45:30.35 10.0 undecidable manual SG 170 0.6216 -0.02 0.7
--.ARV.Z. 1988-07-10T18:45:28.88 10.0 undecidable manual SG 31 0.5772 -0.02 0.5
--.ARV.Z. 1988-07-10T18:45:20.40 10.0 undecidable manual PG 31 0.5772 0.01 1.3
--.MNS.Z. 1988-07-10T18:45:20.90 10.0 undecidable manual PG 170 0.6216 0.02 1.2
--.ASS.Z. 1988-07-10T18:45:12.83 10.0 undecidable manual SG 55 0.0999 0.02 0.9
--.ASS.Z. 1988-07-10T18:45:10.70 10.0 undecidable manual PG 55 0.0999 -0.03 1.4
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