Earthquake with magnitude of Md 2.4 on date 12-12-1988 and time 11:15:35 (Italy) in region 3 km NW Cascia (PG)

A magnitude Md 2.4 earthquake occured in region: 3 km NW Cascia (PG), on

  • 12-12-1988 10:15:35 (UTC)
  • 12-12-1988 11:15:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.73, 12.99 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.

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 3 3217 3217
Poggiodomo PG 5 117 3334
Monteleone di Spoleto PG 9 599 3933
Vallo di Nera PG 11 364 4297
Norcia PG 11 4957 9254
Cerreto di Spoleto PG 11 1075 10329
Sant'Anatolia di Narco PG 12 564 10893
Scheggino PG 13 461 11354
Preci PG 17 724 12078
Sellano PG 18 1079 13157
Leonessa RI 19 2435 15592
Cittareale RI 19 482 16074
Campello sul Clitunno PG 20 2442 18516
Polino TR 20 233 18749

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Terni (111501 inhabitants)
34 Km SE of Foligno (57155 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
59 Km W of Teramo (54892 inhabitants)
64 Km SE of Perugia (166134 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
98 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
Rev 1000 Md 2.4
ML-VAX 1.7
1988-12-12
10:15:35
42.73 12.99 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 83099
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-12-12 10:15:35 ± 0.187
Latitude 42.73 ± 0.01
Longitude 12.99 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 83099

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) 1682
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.01069
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 83099
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:18:03

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 83099
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 Takeoff_angle Residual Weight
--.SDI.Z. 1988-12-12T10:16:17.20 10.0 undecidable manual SN 149 0.0107 1.29 0.1
--.AOI.Z. 1988-12-12T10:16:11.20 10.0 undecidable manual SG! 28 0.0083 2.71 0
--.AZI.Z. 1988-12-12T10:16:04.86 10.0 undecidable manual SG 155 0.0073 0.05 0.5
--.ARV.Z. 1988-12-12T10:16:03.32 10.0 undecidable manual SG 357 0.0069 0.12 0.5
--.SDI.Z. 1988-12-12T10:16:00.00 10.0 undecidable manual PN 149 0.0107 1.07 0.4
--.AOI.Z. 1988-12-12T10:15:55.20 10.0 undecidable manual PG 28 0.0083 0.55 0.9
--.AQU.Z. 1988-12-12T10:15:54.65 10.0 undecidable manual SG 141 0.0044 0.4 0.5
--.AZI.Z. 1988-12-12T10:15:53.26 10.0 undecidable manual PG 155 0.0073 0.74 0.8
--.CIO.Z. 1988-12-12T10:15:53.20 10.0 undecidable manual SG 14 0.0042 -0.68 0.6
--.ARV.Z. 1988-12-12T10:15:53.45 10.0 undecidable manual PG 357 0.0069 1.86 0.1
--.ALP.Z. 1988-12-12T10:15:51.70 10.0 undecidable manual SG 83 0.0038 -0.66 0.6
--.ASS.Z. 1988-12-12T10:15:51.55 10.0 undecidable manual SG 323 0.0036 -0.06 0.6
--.MNS.Z. 1988-12-12T10:15:50.59 10.0 undecidable manual SG 213 0.0037 -1.18 0.2
--.SS8.Z. 1988-12-12T10:15:48.90 10.0 undecidable manual SG 33 0.0029 0.44 0.8
--.AQU.Z. 1988-12-12T10:15:46.10 10.0 positive manual PG 141 0.0044 -0.41 2.6
--.CIO.Z. 1988-12-12T10:15:45.20 10.0 undecidable manual PG 14 0.0042 -1.01 1.2
--.MNS.Z. 1988-12-12T10:15:44.70 10.0 positive manual PG 213 0.0037 -0.3 2.7
--.ASS.Z. 1988-12-12T10:15:44.86 10.0 positive manual PG 323 0.0036 -0.04 3
--.ALP.Z. 1988-12-12T10:15:44.90 10.0 undecidable manual PG 83 0.0038 -0.44 2.5
--.SS8.Z. 1988-12-12T10:15:43.30 10.0 undecidable manual PG? 33 0.0029 0.22 0.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download