Earthquake with magnitude of Md 2.2 on date 24-09-1988 and time 08:02:14 (Italy) in region 2 km N Monteleone di Spoleto (PG)

A magnitude Md 2.2 earthquake occured in region: 2 km N Monteleone di Spoleto (PG), on

  • 24-09-1988 06:02:14 (UTC)
  • 24-09-1988 08:02:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6740, 12.9460 at 11 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 3 599 599
Poggiodomo PG 4 117 716
Cascia PG 8 3217 3933
Scheggino PG 10 461 4394
Sant'Anatolia di Narco PG 11 564 4958
Leonessa RI 13 2435 7393
Vallo di Nera PG 13 364 7757
Polino TR 13 233 7990
Ferentillo TR 14 1913 9903
Cerreto di Spoleto PG 16 1075 10978
Montefranco TR 17 1276 12254
Arrone TR 18 2763 15017
Norcia PG 18 4957 19974
Spoleto PG 18 38218 58192
Cittareale RI 19 482 58674
Morro Reatino RI 19 373 59047
Rivodutri RI 19 1253 60300
Poggio Bustone RI 20 2055 62355

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Terni (111501 inhabitants)
37 Km SE of Foligno (57155 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
62 Km W of Teramo (54892 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
77 Km N of Guidonia Montecelio (88673 inhabitants)
80 Km N of Tivoli (56533 inhabitants)
95 Km NE of Roma (2864731 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
ML-VAX 1.7
1988-09-24
06:02:14
42.674 12.946 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 77719
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-09-24 06:02:14 ± 0.173
Latitude 42.6740 ± 0.0104
Longitude 12.9460 ± 0.0236
Depth (km) 11 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 77719

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) 2248.2
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 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00308
Epicentral distance of station farthest from the epicenter (degree) 0.01036
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 77719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:13:08

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 77719
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
--.SDI.Z. 1988-09-24T06:02:51.32 10.0 undecidable manual SN 145 1.1544 -0.58 0.2
--.ARV.Z. 1988-09-24T06:02:42.90 10.0 undecidable manual SG 359 0.8214 -0.31 0.4
--.SDI.Z. 1988-09-24T06:02:36.32 10.0 undecidable manual PN 145 1.1544 0.43 0.8
--.CP9.Z. 1988-09-24T06:02:30.80 10.0 undecidable manual PG 179 0.8103 0.62 0.7
--.RMP.Z. 1988-09-24T06:02:30.00 10.0 undecidable manual PG 191 0.8769 -1.44 0
--.ASS.Z. 1988-09-24T06:02:30.92 10.0 undecidable manual SG 330 0.444 0.72 0.2
--.AQU.Z. 1988-09-24T06:02:30.58 10.0 undecidable manual SG 133 0.4551 -0.22 0.5
--.ARV.Z. 1988-09-24T06:02:30.60 10.0 positive manual PG 359 0.8214 -0.35 2.1
--.MNS.Z. 1988-09-24T06:02:27.55 10.0 undecidable manual SG 214 0.3441 0.42 0.4
--.AQU.Z. 1988-09-24T06:02:24.20 10.0 positive manual PG 133 0.4551 0.31 2.4
--.ASS.Z. 1988-09-24T06:02:23.56 10.0 positive manual PG 330 0.444 0.2 2.7
--.MNS.Z. 1988-09-24T06:02:21.69 10.0 undecidable manual PG 214 0.3441 0.1 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download