Earthquake with magnitude of Md 2.0 on date 25-11-1988 and time 17:51:40 (Italy) in region 1 km SE Nocera Umbra (PG)

A magnitude Md 2.0 earthquake occured in region: 1 km SE Nocera Umbra (PG), on

  • 25-11-1988 16:51:40 (UTC)
  • 25-11-1988 17:51:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1030, 12.7980 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
Nocera Umbra PG 1 5839 5839
Valtopina PG 6 1398 7237
Serravalle di Chienti MC 13 1070 8307
Sefro MC 13 422 8729
Gualdo Tadino PG 14 15208 23937
Fiuminata MC 15 1402 25339
Assisi PG 15 28299 53638
Spello PG 16 8645 62283
Valfabbrica PG 17 3389 65672
Pioraco MC 18 1134 66806
Foligno PG 18 57155 123961

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
33 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
84 Km S of Fano (60888 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
89 Km NW of Teramo (54892 inhabitants)
90 Km S of Pesaro (94582 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
97 Km NW of L'Aquila (69753 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 2.0 1988-11-25
16:51:40
43.103 12.798 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 81999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-25 16:51:40 ± 0.231
Latitude 43.1030 ± 0.0181
Longitude 12.7980 ± 0.0146
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 81999

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) 2338.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00583
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:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 81999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:17:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ALP.Z. 1988-11-25T16:52:03.50 10.0 undecidable manual SG 119 0.6438 -1 0.2
--.ARV.Z. 1988-11-25T16:51:55.50 10.0 undecidable manual SG 14 0.3996 -1.18 0.1
--.ALP.Z. 1988-11-25T16:51:54.00 10.0 undecidable manual PG 119 0.6438 -0.49 0.8
--.SS8.Z. 1988-11-25T16:51:53.10 10.0 undecidable manual SG 106 0.3219 -0.53 0.7
--.CIO.Z. 1988-11-25T16:51:51.70 10.0 undecidable manual SG 69 0.2553 0.41 0.8
--.ARV.Z. 1988-11-25T16:51:50.00 10.0 undecidable manual PG 14 0.3996 0.02 1.6
--.SS8.Z. 1988-11-25T16:51:49.30 10.0 undecidable manual PG 106 0.3219 1.08 0.3
--.CIO.Z. 1988-11-25T16:51:47.10 10.0 undecidable manual PG 69 0.2553 0.24 3.1
--.ASS.Z. 1988-11-25T16:51:45.62 10.0 undecidable manual SG 249 0.111 0.08 0.7
--.ASS.Z. 1988-11-25T16:51:43.54 10.0 undecidable manual PG 249 0.111 0 1.7
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