Earthquake with magnitude of Md 2.3 on date 18-11-1988 and time 05:51:30 (Italy) in region 4 km NW Poggiodomo (PG)

A magnitude Md 2.3 earthquake occured in region: 4 km NW Poggiodomo (PG), on

  • 18-11-1988 04:51:30 (UTC)
  • 18-11-1988 05:51:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7460, 12.9180 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
Poggiodomo PG 4 117 117
Vallo di Nera PG 5 364 481
Sant'Anatolia di Narco PG 7 564 1045
Scheggino PG 8 461 1506
Cerreto di Spoleto PG 8 1075 2581
Cascia PG 8 3217 5798
Monteleone di Spoleto PG 11 599 6397
Campello sul Clitunno PG 14 2442 8839
Spoleto PG 15 38218 47057
Norcia PG 15 4957 52014
Sellano PG 16 1079 53093
Ferentillo TR 17 1913 55006
Preci PG 18 724 55730
Polino TR 19 233 55963

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Foligno (57155 inhabitants)
30 Km NE of Terni (111501 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
76 Km E of Viterbo (67173 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
87 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 2.3 1988-11-18
04:51:30
42.746 12.918 16 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 81389
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-18 04:51:30 ± 0.333
Latitude 42.7460 ± 0.0126
Longitude 12.9180 ± 0.0592
Depth (km) 16 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 81389

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) 5032.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.01101
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 81389
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1988-11-18T04:51:57.51 10.0 undecidable manual SG 1 0.7437 0.6 0.4
--.SDI.Z. 1988-11-18T04:51:52.35 10.0 undecidable manual PN 147 1.221 -0.63 0.7
--.CRE.Z. 1988-11-18T04:51:52.00 10.0 undecidable manual PN 321 1.11 0.49 1
--.ARV.Z. 1988-11-18T04:51:46.48 10.0 undecidable manual PG 1 0.7437 0.63 0.9
--.MNS.Z. 1988-11-18T04:51:46.27 10.0 undecidable manual SG 205 0.3996 0.54 0.5
--.ASS.Z. 1988-11-18T04:51:43.96 10.0 undecidable manual SG 328 0.3663 -0.8 0.3
--.MNS.Z. 1988-11-18T04:51:39.51 10.0 negative manual PG 205 0.3996 0.11 3.6
--.ASS.Z. 1988-11-18T04:51:37.99 10.0 undecidable manual PG 328 0.3663 -0.85 0.6
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