Earthquake with magnitude of Md 2.6 on date 18-09-1989 and time 13:52:16 (Italy) in region 6 km SE Monteleone di Spoleto (PG)

A magnitude Md 2.6 earthquake occured in region: 6 km SE Monteleone di Spoleto (PG), on

  • 18-09-1989 11:52:16 (UTC)
  • 18-09-1989 13:52:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.01 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
Monteleone di Spoleto PG 6 599 599
Leonessa RI 7 2435 3034
Cascia PG 11 3217 6251
Poggiodomo PG 12 117 6368
Cittareale RI 13 482 6850
Posta RI 13 694 7544
Polino TR 14 233 7777
Borbona RI 16 617 8394
Poggio Bustone RI 16 2055 10449
Rivodutri RI 17 1253 11702
Scheggino PG 18 461 12163
Ferentillo TR 18 1913 14076
Morro Reatino RI 18 373 14449
Sant'Anatolia di Narco PG 19 564 15013
Cantalice RI 19 2755 17768
Micigliano RI 19 127 17895
Montefranco TR 20 1276 19171
Arrone TR 20 2763 21934
Labro RI 20 374 22308

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Terni (111501 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
45 Km SE of Foligno (57155 inhabitants)
57 Km W of Teramo (54892 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
75 Km N of Tivoli (56533 inhabitants)
77 Km E of Viterbo (67173 inhabitants)
92 Km NE of Roma (2864731 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
100 Km W of Chieti (51815 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
Rev 1000 Md 2.6
ML-VAX 2.0
1989-09-18
11:52:16
42.62 13.01 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 99639
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-18 11:52:16 ± 0.328
Latitude 42.62 ± 0.01
Longitude 13.01 ± 0.04
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99639

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) 3685
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.003
Epicentral distance of station farthest from the epicenter (degree) 0.00915
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 99639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:33:04

ML:2

Field Value
Value 2
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 99639
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AM8.Z. 1989-09-18T11:52:54.30 10.0 undecidable manual SG 24 0.0091 1.72 0.1
--.ARV.Z. 1989-09-18T11:52:48.52 10.0 undecidable manual SG 356 0.0079 0.6 0.4
--.CP9.Z. 1989-09-18T11:52:44.93 10.0 undecidable manual SG 182 0.0068 0.82 0.4
--.CM8.Z. 1989-09-18T11:52:38.10 10.0 undecidable manual SG 9 0.0052 -0.3 1
--.ASS.Z. 1989-09-18T11:52:36.90 10.0 undecidable manual SG 329 0.0045 0.74 0.4
--.AM8.Z. 1989-09-18T11:52:36.10 10.0 undecidable manual PG 24 0.0091 -1.38 0.2
--.ARV.Z. 1989-09-18T11:52:35.16 10.0 undecidable manual PG 356 0.0079 0.37 1.3
--.CP9.Z. 1989-09-18T11:52:32.93 10.0 undecidable manual PG 182 0.0068 0.34 1.5
--.MNS.Z. 1989-09-18T11:52:29.54 10.0 undecidable manual SG 225 0.003 -0.4 0.6
--.ASS.Z. 1989-09-18T11:52:28.60 10.0 undecidable manual PG 329 0.0045 0.06 1.7
--.CM8.Z. 1989-09-18T11:52:28.50 10.0 undecidable manual PG 9 0.0052 -0.79 1
--.MNS.Z. 1989-09-18T11:52:24.30 10.0 positive manual PG 225 0.003 -0.11 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download