Earthquake with magnitude of Md 2.4 on date 09-07-1988 and time 13:41:33 (Italy) in region Costa Marchigiana Fermana (Fermo)

A magnitude Md 2.4 earthquake occured in region: Costa Marchigiana Fermana (Fermo), on

  • 09-07-1988 11:41:33 (UTC)
  • 09-07-1988 13:41:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1370, 14.0010 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
Pedaso FM 14 2800 2800
Campofilone FM 16 1916 4716
Cupra Marittima AP 17 5398 10114
Altidona FM 17 3390 13504
Porto San Giorgio FM 17 16121 29625
Lapedona FM 19 1166 30791
Massignano AP 19 1638 32429
Grottammare AP 20 16006 48435

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km NE of Teramo (54892 inhabitants)
66 Km SE of Ancona (100861 inhabitants)
70 Km N of Montesilvano (53738 inhabitants)
77 Km N of Pescara (121014 inhabitants)
88 Km N of Chieti (51815 inhabitants)
100 Km NE of L'Aquila (69753 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 2.4
ML-VAX 1.7
1988-07-09
11:41:33
43.137 14.001 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 72969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-09 11:41:33 ± 0.535
Latitude 43.1370 ± 0.0145
Longitude 14.0010 ± 0.0388
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 72969

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) 3539.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 256
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00429
Epicentral distance of station farthest from the epicenter (degree) 0.00882
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 72969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:09:01

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 72969
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
--.ASS.Z. 1988-07-09T11:42:07.56 10.0 undecidable manual SG 265 0.9768 -0.08 0.7
--.ARV.Z. 1988-07-09T11:42:02.95 10.0 undecidable manual SG 295 0.8436 -0.28 0.6
--.ASS.Z. 1988-07-09T11:41:52.42 10.0 undecidable manual PG 265 0.9768 -0.62 0.9
--.ARV.Z. 1988-07-09T11:41:51.58 10.0 undecidable manual PG 295 0.8436 1.09 0.4
--.ALP.Z. 1988-07-09T11:41:51.75 10.0 undecidable manual SG 221 0.4773 0.46 0.9
--.ALP.Z. 1988-07-09T11:41:43.25 10.0 undecidable manual PG 221 0.4773 -0.35 1.6
--.AM8.Z. 1988-07-09T11:41:43.88 10.0 undecidable manual PG 324 0.4995 -0.21 1.8
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