Earthquake with magnitude of Md 2.1 on date 14-11-1988 and time 22:46:25 (Italy) in region 2 km NE Giano dell'Umbria (PG)

A magnitude Md 2.1 earthquake occured in region: 2 km NE Giano dell'Umbria (PG), on

  • 14-11-1988 21:46:25 (UTC)
  • 14-11-1988 22:46:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8530, 12.5950 at 35 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
Giano dell'Umbria PG 3 3846 3846
Montefalco PG 7 5679 9525
Castel Ritaldi PG 7 3278 12803
Gualdo Cattaneo PG 7 6155 18958
Bevagna PG 9 5081 24039
Massa Martana PG 10 3770 27809
Trevi PG 13 8469 36278
Collazzone PG 14 3473 39751
Foligno PG 15 57155 96906
Campello sul Clitunno PG 15 2442 99348
Cannara PG 16 4305 103653
Spello PG 17 8645 112298
Todi PG 17 16851 129149
Spoleto PG 18 38218 167367
Acquasparta TR 18 4778 172145
Fratta Todina PG 19 1839 173984
Monte Castello di Vibio PG 20 1567 175551
Bettona PG 20 4367 179918

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SW of Foligno (57155 inhabitants)
33 Km N of Terni (111501 inhabitants)
33 Km SE of Perugia (166134 inhabitants)
63 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
93 Km W of Teramo (54892 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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 1988-11-14
21:46:25
42.853 12.595 35 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 81219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-14 21:46:25 ± 0.319
Latitude 42.8530 ± 0.0090
Longitude 12.5950 ± 0.0999
Depth (km) 35 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 81219

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) 8203.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00186
Epicentral distance of station farthest from the epicenter (degree) 0.00623
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 81219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-11-14T21:46:48.73 10.0 undecidable manual S 21 0.6882 0.31 0.2
--.MNS.Z. 1988-11-14T21:46:43.00 10.0 undecidable manual S 172 0.4662 -0.2 0.5
--.ARV.Z. 1988-11-14T21:46:38.41 10.0 undecidable manual P 21 0.6882 -0.22 0.9
--.ASS.Z. 1988-11-14T21:46:37.50 10.0 undecidable manual S 11 0.2109 -0.14 0.7
--.MNS.Z. 1988-11-14T21:46:35.74 10.0 undecidable manual P 172 0.4662 0.13 1.8
--.ASS.Z. 1988-11-14T21:46:32.50 10.0 undecidable manual P 11 0.2109 0.09 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