Earthquake with magnitude of Md 2.0 on date 06-11-1989 and time 22:40:12 (UTC) in region 1 km NE Cascia (PG)

A magnitude Md 2.0 earthquake occured in region: 1 km NE Cascia (PG), on

  • 06-11-1989 22:40:12 (UTC)
  • 06-11-1989 23:40:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7270, 13.0250 at 10 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
Cascia PG 1 3217 3217
Poggiodomo PG 8 117 3334
Norcia PG 9 4957 8291
Monteleone di Spoleto PG 10 599 8890
Cerreto di Spoleto PG 14 1075 9965
Vallo di Nera PG 14 364 10329
Sant'Anatolia di Narco PG 15 564 10893
Scheggino PG 16 461 11354
Cittareale RI 16 482 11836
Preci PG 17 724 12560
Accumoli RI 19 667 13227
Leonessa RI 19 2435 15662
Sellano PG 20 1079 16741

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Terni (111501 inhabitants)
37 Km SE of Foligno (57155 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
56 Km W of Teramo (54892 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
83 Km E of Viterbo (67173 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 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
ML-VAX 1.5
1989-11-06
22:40:12
42.727 13.025 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 103849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-11-06 22:40:12 ± 0.1
Latitude 42.7270 ± 0.0061
Longitude 13.0250 ± 0.0094
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 103849

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) 1022.3
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00421
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 103849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:36:45

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 103849
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(km) Takeoff_angle Residual Weight
--.CM8.Z. 1989-11-06T22:40:29.84 10.0 undecidable manual SG 10 0.4662 0.23 0.3
--.ASS.Z. 1989-11-06T22:40:28.10 10.0 undecidable manual SG 321 0.4329 -0.2 0.4
--.ALP.Z. 1989-11-06T22:40:27.49 10.0 undecidable manual SG 82 0.3996 0.25 0.3
--.MNS.Z. 1989-11-06T22:40:27.52 10.0 undecidable manual SG 216 0.4218 -0.48 0
--.CM8.Z. 1989-11-06T22:40:22.13 10.0 undecidable manual PG 10 0.4662 -0.22 0.8
--.MNS.Z. 1989-11-06T22:40:21.57 10.0 positive manual PG 216 0.4218 0.15 2.3
--.ASS.Z. 1989-11-06T22:40:21.62 10.0 negative manual PG 321 0.4329 0.08 2.9
--.ALP.Z. 1989-11-06T22:40:20.80 10.0 undecidable manual PG 82 0.3996 -0.18 1
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