Earthquake with magnitude of Md 2.2 on date 18-06-1999 and time 02:40:48 (Italy) in region 2 km SE Nocera Umbra (PG)

A magnitude Md 2.2 earthquake occured in region: 2 km SE Nocera Umbra (PG), on

  • 18-06-1999 00:40:48 (UTC)
  • 18-06-1999 02:40:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1000, 12.8100 at 16 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 2 5839 5839
Valtopina PG 6 1398 7237
Serravalle di Chienti MC 12 1070 8307
Sefro MC 13 422 8729
Fiuminata MC 14 1402 10131
Gualdo Tadino PG 15 15208 25339
Assisi PG 16 28299 53638
Spello PG 16 8645 62283
Pioraco MC 17 1134 63417
Valfabbrica PG 18 3389 66806
Foligno PG 18 57155 123961
Muccia MC 19 915 124876
Monte Cavallo MC 20 145 125021

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
61 Km N of Terni (111501 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
85 Km S of Fano (60888 inhabitants)
85 Km E of Arezzo (99543 inhabitants)
88 Km NW of Teramo (54892 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 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 2.2 1999-06-18
00:40:48
43.1 12.81 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 369019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-06-18 00:40:48 ± 0.14
Latitude 43.1000 ± 0.0048
Longitude 12.8100 ± 0.0122
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 369019

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) 1128.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00648
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 369019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:46:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1999-06-18T00:41:03.44 10.0 undecidable manual SG 13 0.3996 -0.16 0.5
--.MNS.Z. 1999-06-18T00:41:02.84 10.0 undecidable manual PG 187 0.7215 -0.03 1.3
--.NRCA.Z. 1999-06-18T00:41:01.27 10.0 undecidable manual SG 140 0.3441 -0.36 0.1
--.ARV.Z. 1999-06-18T00:40:57.90 10.0 undecidable manual PG 13 0.3996 -0.06 1.8
--.SNTG.Z. 1999-06-18T00:40:56.97 10.0 undecidable manual SG 31 0.1776 0.26 0.3
--.NRCA.Z. 1999-06-18T00:40:56.20 10.0 undecidable manual PG 140 0.3441 0.19 1.1
--.ASS.Z. 1999-06-18T00:40:54.95 10.0 undecidable manual SG 251 0.1221 -0.26 0.3
--.SNTG.Z. 1999-06-18T00:40:53.13 10.0 undecidable manual PG 31 0.1776 -0.05 2.2
--.ASS.Z. 1999-06-18T00:40:52.46 10.0 undecidable manual PG 251 0.1221 0.15 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