Earthquake with magnitude of Md 2.0 on date 10-05-1988 and time 21:07:35 (Italy) in region 4 km NE Spoleto (PG)

A magnitude Md 2.0 earthquake occured in region: 4 km NE Spoleto (PG), on

  • 10-05-1988 19:07:35 (UTC)
  • 10-05-1988 21:07:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7600, 12.7770 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
Spoleto PG 4 38218 38218
Sant'Anatolia di Narco PG 6 564 38782
Campello sul Clitunno PG 7 2442 41224
Scheggino PG 7 461 41685
Vallo di Nera PG 7 364 42049
Castel Ritaldi PG 11 3278 45327
Cerreto di Spoleto PG 13 1075 46402
Trevi PG 13 8469 54871
Poggiodomo PG 14 117 54988
Ferentillo TR 15 1913 56901
Montefranco TR 18 1276 58177
Montefalco PG 18 5679 63856
Giano dell'Umbria PG 18 3846 67702
Monteleone di Spoleto PG 19 599 68301
Sellano PG 19 1079 69380
Arrone TR 20 2763 72143
Cascia PG 20 3217 75360

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km S of Foligno (57155 inhabitants)
25 Km NE of Terni (111501 inhabitants)
50 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
77 Km W of Teramo (54892 inhabitants)
85 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km N of Tivoli (56533 inhabitants)
99 Km N 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 2.0 1988-05-10
19:07:35
42.76 12.777 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 69069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-10 19:07:35 ± 0.076
Latitude 42.7600 ± 0.0037
Longitude 12.7770 ± 0.0147
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 69069

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) 1270.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00453
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 69069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:05:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CM8.Z. 1988-05-10T19:07:54.33 10.0 undecidable manual SG 31 0.4995 0.19 0.2
--.MNS.Z. 1988-05-10T19:07:49.62 10.0 undecidable manual SG 190 0.3774 -0.34 0
--.ASS.Z. 1988-05-10T19:07:47.88 10.0 undecidable manual SG 343 0.3108 0.01 0.7
--.CM8.Z. 1988-05-10T19:07:46.25 10.0 undecidable manual PG 31 0.4995 -0.14 0.9
--.MNS.Z. 1988-05-10T19:07:44.90 10.0 positive manual PG 190 0.3774 0.11 2.5
--.ASS.Z. 1988-05-10T19:07:42.76 10.0 undecidable manual PG 343 0.3108 -0.02 1.7
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