Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.5 on date 22-03-1989 and time 11:59:31 (UTC) in region 6 km NE Campello sul Clitunno (PG)

A magnitude Md 2.5 earthquake occured in region: 6 km NE Campello sul Clitunno (PG), on

  • 22-03-1989 11:59:31 (UTC)
  • 22-03-1989 12:59:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8570, 12.8360 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Campello sul Clitunno PG 6 2442 2442
Trevi PG 8 8469 10911
Cerreto di Spoleto PG 8 1075 11986
Sellano PG 8 1079 13065
Vallo di Nera PG 10 364 13429
Sant'Anatolia di Narco PG 14 564 13993
Castel Ritaldi PG 14 3278 17271
Foligno PG 15 57155 74426
Montefalco PG 16 5679 80105
Spoleto PG 16 38218 118323
Scheggino PG 16 461 118784
Preci PG 17 724 119508
Poggiodomo PG 18 117 119625

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SE of Foligno (57155 inhabitants)
36 Km NE of Terni (111501 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
74 Km W of Teramo (54892 inhabitants)
77 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km N of Tivoli (56533 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 2.5
ML-VAX 2.1 		1989-03-22
11:59:31		 42.857 12.836 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 88819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-03-22 11:59:31 ± 0.259
Latitude 42.8570 ± 0.0120
Longitude 12.8360 ± 0.0235
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 88819

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) 2334.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00890
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 88819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:23:20

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 88819
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
--.CP9.Z. 1989-03-22T12:00:06.14 10.0 undecidable manual SG 174 0.9879 0.13 0.4
--.AOI.Z. 1989-03-22T12:00:02.75 10.0 undecidable manual SG 38 0.8769 0.26 0.7
--.AM8.Z. 1989-03-22T12:00:02.80 10.0 undecidable manual SG 38 0.8769 0.31 0.6
--.SSO.Z. 1989-03-22T11:59:55.20 10.0 undecidable manual SG 43 0.5994 1.64 0
--.MC8.Z. 1989-03-22T11:59:55.20 10.0 undecidable manual SG 43 0.5994 1.64 0
--.ALP.Z. 1989-03-22T11:59:51.81 10.0 undecidable manual SG 97 0.5439 0.46 0.7
--.CP9.Z. 1989-03-22T11:59:50.10 10.0 undecidable manual PG 174 0.9879 -1.24 0.3
--.MNS.Z. 1989-03-22T11:59:49.86 10.0 undecidable manual SG 193 0.4773 0.31 0.5
--.AOI.Z. 1989-03-22T11:59:47.89 10.0 undecidable manual PG 38 0.8769 -1.34 0.2
--.AM8.Z. 1989-03-22T11:59:47.90 10.0 undecidable manual PG 38 0.8769 -1.33 0.2
--.CIO.Z. 1989-03-22T11:59:46.16 10.0 undecidable manual SG 33 0.3996 -0.68 0.6
--.CM8.Z. 1989-03-22T11:59:46.20 10.0 undecidable manual SG 33 0.3996 -0.64 0.6
--.MC8.Z. 1989-03-22T11:59:44.70 10.0 undecidable manual PG 43 0.5994 0.63 1
--.SS8.Z. 1989-03-22T11:59:44.10 10.0 undecidable manual SG 62 0.3219 0.35 0.8
--.SSO.Z. 1989-03-22T11:59:44.67 10.0 undecidable manual PG 43 0.5994 0.61 1
--.ALP.Z. 1989-03-22T11:59:43.00 10.0 positive manual PG 97 0.5439 0.21 2.9
--.MNS.Z. 1989-03-22T11:59:42.30 10.0 negative manual PG 193 0.4773 0.28 2.8
--.ASS.Z. 1989-03-22T11:59:41.97 10.0 undecidable manual SG 326 0.2442 1.25 0.1
--.CM8.Z. 1989-03-22T11:59:39.70 10.0 undecidable manual PG 33 0.3996 -0.48 2.4
--.CIO.Z. 1989-03-22T11:59:39.72 10.0 positive manual PG 33 0.3996 -0.46 2.4
--.SS8.Z. 1989-03-22T11:59:38.80 10.0 undecidable manual PG 62 0.3219 0.4 2.6
--.ASS.Z. 1989-03-22T11:59:37.26 10.0 undecidable manual PG 326 0.2442 0.61 1.1
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