Earthquake with magnitude of Md 2.1 on date 08-05-1990 and time 14:41:41 (Italy) in region 5 km E Nocera Umbra (PG)

A magnitude Md 2.1 earthquake occured in region: 5 km E Nocera Umbra (PG), on

  • 08-05-1990 12:41:41 (UTC)
  • 08-05-1990 14:41:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.104, 12.856 at 26 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 5 5839 5839
Serravalle di Chienti MC 9 1070 6909
Sefro MC 9 422 7331
Valtopina PG 10 1398 8729
Fiuminata MC 11 1402 10131
Pioraco MC 14 1134 11265
Gualdo Tadino PG 15 15208 26473
Muccia MC 16 915 27388
Monte Cavallo MC 17 145 27533
Pieve Torina MC 17 1458 28991
Camerino MC 18 6974 35965
Esanatoglia MC 18 2034 37999
Pievebovigliana MC 19 866 38865
Spello PG 19 8645 47510
Assisi PG 20 28299 75809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
63 Km N of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
83 Km S of Fano (60888 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
90 Km S of Pesaro (94582 inhabitants)
95 Km NW of L'Aquila (69753 inhabitants)
98 Km NE of Viterbo (67173 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 1990-05-08
12:41:41
43.104 12.856 26 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 117429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-05-08 12:41:41 ± 0.338
Latitude 43.1040 ± 0.0108
Longitude 12.8560 ± 0.0126
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 117429

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) 1579.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.00356
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 117429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:49:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1990-05-08T12:41:58.24 10.0 undecidable manual SG 9 0.0036 0.5 0
--.RMF.Z. 1990-05-08T12:41:55.36 10.0 undecidable manual SG 119 0.0027 0.42 0.1
--.CIO.Z. 1990-05-08T12:41:52.92 10.0 undecidable manual SG 66 0.002 -0.25 0.4
--.ASS.Z. 1990-05-08T12:41:51.66 10.0 undecidable manual SG 254 0.0014 0.07 0.5
--.ARV.Z. 1990-05-08T12:41:51.10 10.0 undecidable manual PG 9 0.0036 0.07 1.1
--.RMF.Z. 1990-05-08T12:41:49.44 10.0 undecidable manual PG 119 0.0027 0.03 2.7
--.CIO.Z. 1990-05-08T12:41:48.20 10.0 undecidable manual PG 66 0.002 -0.19 1.9
--.ASS.Z. 1990-05-08T12:41:47.38 10.0 undecidable manual PG 254 0.0014 -0.09 1.3
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